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Half-Life 2 Walkthrough

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  • Guide written by [http://greenhouse.mahalo.com/Special:Mahaloprofile?uid=4554 Nate C]

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  • Default PC Controls

    1. W - Move forward
    2. S - Move backward
    3. A - Move left
    4. D - Move right
    5. Mouse - Camera movement
    6. Mouse 1 - Primary attack
    7. Mouse 2 - Secondary attack/weapon function
    8. Scroll Wheel - Weapon select
    9. Z - Zoom in
    10. Shift - Run
    11. Ctrl - Crouch
    12. Space - Jump
    13. E - Use/Open
    14. R - Reload Weapon
    15. F - Flashlight

  • Basics

    1. Always aim for the head. Headshots kill everything faster.
    2. Stay behind cover. You will live longer.
    3. Use the Gravity Gun to bring cover with you.
    4. Look for a yellow lambda spray-painted onto a wall. This means there is something good nearby.
    5. Do not turn on your flashlight while you are swimming. It also uses your Auxiliary Power.
    6. Barrels can stop bullets.

  • Weapons

    1. Crowbar: This is your only close-combat weapon. It is good for killing Headcrabs, busting crates and boxes and a host of other things. And it never runs out of ammo.
    2. 9mm Pistol: Your second weapon is a good starter weapon. It kills Civil Protection quickly and is useful for long-range shots before you get the Crossbow. Ammo is plentiful and this will be your backup weapon for most of the game. You can carry up to 243 rounds for this weapon.
    3. .357 Magnum: This powerhouse pistol has very limited ammunition. You can carry a maximum of 18 rounds for it. However, it will kill any human target in a single shot, from any range. It kills Zombies in two shots and makes an excellent sniper weapon before you get the Crossbow. Always keep a few rounds for it. You never know when you'll need to kill something in a hurry.
    4. Submachine Gun: This weapon is an H&K MP-7 with a grenade launcher. It's accuracy is fair, it's power relatively weak. However, ammunition is plentiful for it, and it will be your primary weapon for most of the game. Nearly all Combine troops will carry this after it starts appearing. Only use the grenade launcher to take out groups of enemies from medium range. Never use the grenade launcher in close quarters. You can carry 270 rounds for the Submachine gun and 3 rounds for the grenade launcher.
    5. Overwatch Pulse Rifle: Found later in the game, this weapon serves as a replacement for the Submachine gun. It has excellent power, good rate of fire and can carry 90 rounds. It also has a secondary plasma attack that kills any human target in a single hit and bounces a few times as well. You can only carry 3 plasma rounds.
    6. Shotgun: This SPAS-12 Shotgun is one of the most useful weapons you will get. It has two firing modes: single and double. The single is perfect for killing Black Headcrabs, humans and Antlions. The double blast will kill just about anything short of a Black Headcrab Carrier in a single barrage. You can carry up to 36 rounds for the Shotgun. Only use it at close range.
    7. Crossbow: This is your primary sniper weapon. It fires super-heated pieces of rebar and will kill any human target in a single shot. It has excellent range, but can only carry eleven rounds. Secondary-fire is the zoom function.
    8. Grenades: These are useful for clearing rooms and groups of enemies. They are highly effective and can be set for delayed or quick explosion. You can carry five Grenades.
    9. RPG: This stands for Rocket-propelled Grenade. These are useful for shooting down Gunships and Striders. Use the laser to guide your rockets. You can carry three RPGs.
    10. Antlion Bait: After you kill the first Myrmidont, the Vortigaunts gift you with the Antlion Bait. From here on out, the Antlions are your friends. Use the primary function to throw the bait. This causes the Antlions to attack whatever you threw the bait at. Use the secondary function to squeeze the bait. This calls any nearby Antlions to you. The Antlions will be instrumental for your operations in and around Nova Prospekt.
    11. TIP: The bug bait is useful for more than calling and directing Antlions. Throw it at a Combine soldier. He will begin to flail and will not shoot you for a few seconds. Use this time to hit him with the Crowbar. This is very useful if you are low on ammunition.
    12. Enhanced Gravity Gun: This is the last weapon you will get. When all your other weapons get destroyed, you are left with only this for the rest of the game. It can do two things.
      1. It can pull objects AND enemies to you. Pulling an enemy electrocutes and kills them instantaneously. The Enhanced Gravity Gun's power is also much better. It can pull consoles off walls.
      2. It can blast enemy troops. Again, this is instantly fatal. Blasting one enemy trooper into others will electrocute and kill them all.

  • Enemies

    1. Civil Protection: These are the first and easiest enemies you will encounter. They are easily recognized by their white helmets. Two shots to the head from the 9mm Pistol will bring them down. They are easily defeated by any weapon. They carry 9mm pistols and Submachine guns.
    2. Barnacles: These are the second enemies you will encounter. They are easily recognized by their long tentacles that hang from the ceiling. They are easily avoided and can be killed in two ways.
      1. Shoot them. Five shots from the 9mm Pistol will kill them.
      2. Let them snag you. You will have a few seconds while it reels you in. Just before it bites you, hit it with the Crowbar. This saves on ammo, but can be dangerous if your timing is off.
    1. Manhacks: These are small helicopter-like drones that slice you with their blades. They are easily defeated three ways.
      1. Shoot them. A few bullets will bring them down.
      2. Hit them. The Crowbar can destroy them in two to three hits.
      3. Snag them with the Gravity Gun, then shoot them into anything solid and close by. This will destroy them in a single shot and save you valuable ammo.
    1. Headcrabs: These critters are small and nimble, but not very dangerous. They are easily killed with any weapon. Try and keep them at a distance. They can leap a few meters, so shoot them quickly.
    2. Zombies: These creatures are the result of Headcrabs getting a hold of humans. They are best dispatched with Submachine Guns or Shotguns. Aim for the head and make sure the attached Headcrab is dead before you move on.
    3. Swift Headcrabs: These are faster and more dangerous that regular Headcrabs. They have long legs like the Black Headcrabs, but are colored like normal ones. They do more damage than regular Headcrabs. Kill them as you would regular Headcrabs.
    4. Black Headcrabs: One of the most dangerous opponents, Black Headcrabs can reduce you to 1 Health with a single hit. They are larger than normal Headcrabs and make a rattling hiss when they are near. Take them down quickly with a burst from your SMG or a shotgun shell.
    5. Screaming Zombies: These nightmares are fast, loud and extremely dangerous. They can be killed with a burst from the SMG or with one to two shotgun shells. Note that they are easy to hear coming: they often climb the side of buildings and will either make a clanking noise or scream.
    6. Black Headcrab Carrier: These are humans who have been taken by Black Headcrabs. They are very large and slow but extremely tough. They also like to throw Black Headcrabs at you. Destroy them with explosives and stay well away from them at all times. These are potentially the most dangerous enemies. Thankfully, you never see more than a handful of them.
    7. Overwatch: These soldiers are tougher than CPs. They also carry heavier firepower. They carry submachine guns, shotguns, magnums and pulse rifles. Defeat them with the shotgun or pulse rifle.
    8. Overwatch Elite: These are the best Overwatch soldiers. They wear white armor and always carry pulse rifles. They make use of the secondary attack on the pulse rifle as well. Defeat them with the pulse rifle or shotgun.
    9. Myrmidont: This giant Antlion is very tough and very powerful. Stay well away from it. The trick is to allow it to charge, then sprint out of the way. Hit it with your strongest attacks and explosives.
    10. Auto Gun: These robot sentries automatically target and shoot you and any Antlions nearby. They can be easily disabled by throwing them with the Gravity Gun or knocking them over with the Crowbar. You can approach them by using a barrel as a shield, then ramming them. They are also used later on in your defense. They can be set up again if they get knocked over.
    11. TIP: Place Auto Guns near choke points: stairwells, tight hallways and corners.
    12. Strider: These large, three-legged machines are surprisingly tough and very powerful. They can only be defeated by several (5-8) rockets. Never get near them. Their legs can impale you.
    13. Security Turrets: These are rare, but dangerous. They are marked with blue laser beams. Breaking the beam calls the turret out of the floor. Drop a grenade inside to destroy it.
    14. NOTE: Security Turrets have a limited field of fire. Standing behind, to the side or on top of the turret is safe. Use this to your advantage.
    15. Gunships: These flying machines are easily recognized by the large fan at the aft end. They can be destroyed with three RPG shots. To hit them, wait until they start shooting and aim your RPG launcher away from them. Guide the rocket in behind the Gunship. It will shoot your rocket down if you aim straight for it.
    16. Helicopter: These monsters can only be defeated by the airboat gun. Shoot them repeatedly to bring them down.
    17. Armored Truck: Like the helicopter, these can only be defeated by the airboat gun. Spray them with a few solid bursts to blow them up.

  • Point Insertion

    1. Move forward.
    2. Get off the train. Head to the left. You should see a revolving gate. Go through it.
    3. Go through the cafeteria and into the fenced-in line. Follow the guard's instructions.
    4. Walk through the gate to your left. Follow the guard when he tells you to.
    5. Meet Barney and Dr. Kleiner.
    6. Go through the door Barney opens up for you.
    7. Climb the ladder to your right. To climb, face the ladder and move forward.
    8. Press E to pick up one of the boxes. Set it down in front of the open window. This gives you something to step on.
    9. Jump up onto the box. Crouch and jump through the window.
    10. Press E to open the door.
    11. Go through the hallway into the station.
    12. Had towards the open door. You will be stopped by another guard.
    13. Pick up the can he knocks over. Place it in the trash.
    14. Move past the guard. Head for the open hallway at the far end.
    15. Open the doors at the end of the hall. You will emerge onto a street. Head to your right.
    16. Go all the way to the end of the alley. Look for a dumpster with a ladder above it.
    17. Jump onto the dumpster and climb the ladder. Go across the catwalk and drop down on the other side of the fence.
    18. Head through the alley and take a right. Go to the end of the courtyard. There will be an open door on your left before you reach the guards. Head through it. Go through the door at the end of the hall.
    19. Head up the stairs. Stop when you see Civil Protection banging on a door. Walk past them once they enter the room. Continue up the stairs.
    20. Stop when you see a man leaning out of a doorway. Follow him inside. Go through the apartment and into the hall at the far end.
    21. Ascend the stairs quickly; Civil Protection is on to you.
    22. Go through the open door. Head up the stairs to your right.
    23. Go out through the hole in the roof. Go across the roof and up the wooden planks.
    24. Head to your left and carefully slide down the roof. Crouch and walk across the wood planks.
    25. Make your way around the outside of the buildings until you come to an open window.
    26. Jump inside. Go down the stairs. You will be assaulted by two squads of Civil Protection. Don't worry, you're supposed to get knocked out.
    27. Meet Alyx. Get into the elevator.
    28. Follow Alyx through the tunnels.

  • A Red Letter Day

    1. Follow Alyx into the lab.
    2. Speak to Dr. Kleiner.
    3. Step into your HEV suit when Barney opens it up for you.
    4. Go to the Recharge Station on the wall. It's the grey/black box with orange bits on it. Press and hold E to activate it. Doing so will recharge your HEV suit's power.
    5. TIP: Watch for health and power recharge stations throughout the game. They are rare, but always useful.
    6. Follow Alyx into the next room.
    7. Press E to grab the broken power coupling. Move it to the wall to plug it back in. Press E again to throw the switch when directed to do so.
    8. Step into the teleporter. Don't panic.
    9. Drop off the catwalk. Look for an opening in the fence. There will be some barrels at the base of a stairwell. Go up the stairs.
    10. Go through the door. Walk to the end of the wall on your right. Barney will come and speak to you momentarily. Collect the Crowbar from him.
    11. Use the crowbar to smash the wood planks blocking the hole in the fence.
    12. Head down the stairs and into the dark alcove. Smash the box and drop down into the train yard.
    13. Go to your left. Climb up onto the low wall. Jump across into the red train car. Smash the boxes so you can exit through the other side.
    14. TIP: Stay off the tracks; a train is about to come in from your left. Wait until it stops.
    15. Follow the moving train to the right. There should be a gap in the trains to your left. Go through it and take another left. You should see a small ramp leading up into another train car. Go into it.
    16. Smash the boxes. This will give you access to the ladder. Go up the ladder to get to the top of the train car.
    17. Look to your left. Move across the train car and jump over to the other side of the fence.
    18. Head down the stairs.
    19. Follow the tunnel. Recharge at the stations.
    20. Kill the Civil Protection with your crowbar. You will find a 9mm Pistol.
    21. Follow the tunnel and ascend the stairs. You will come across two more CPs before you emerge from the tunnels.
    22. Head out of the tunnels. Press and hold Shift to sprint to the blue wall.
    23. Go through the hole in the fence. A train will come by. Wait for the train to stop, then jump over it to cross to the other side of the tracks.
    24. Use the ladder to your right to get up to the next level.
    25. Head around the wall to your right. Use the Crowbar to smash the wood planks blocking the doorway. Head inside.
    26. TIP: Look for the yellow Lambda symbol painted on the wall. This indicates something important. In this case, it indicates an equipment stash. You will find a box of ammo and a Medkit underneath it.
    27. Go through the next room.
    28. TIP: Shoot the red barrels twice to set them on fire. Shoot them a third time to blow them up instantly. These explosive barrels are very useful for eliminating enemies quickly while using a minimum of ammunition. Just remember that they can blow you up too.
    29. Exit through the door. Smash the wooden crate on the ground for another box of ammo.
    30. TIP: Wooden crates with a yellow "Supply" marker on them usually have ammo or recharges in them.
    31. Open the gate in the metal fence to your left. Shoot the CPs above you.
    32. Head through the courtyard.
    33. Jump over the bent portion of the fence.
    34. Hug the wall on your left. CPs will be shooting at you from across the tracks.
    35. Follow the fence to your right. You should find a small hole in the bottom of a shipping crate. Crouch to go through it.
    36. TIP: There will be a CP waiting for you on the other side.
    37. Go to the end of the fence and drop down. Head into the tunnel on your right. There will be more CPs in the tunnel.
    38. TIP: Stay off the tracks.
    39. Head to the upper level. You will find a stairwell on your right. Note that there will be a CP at the top who will drop a flaming barrel onto you. Sprint out of the way before you shoot him.
    40. Follow the upper level around to the right. Fill up on health if you're missing any. This will take you past the blue barrier.
    41. Go up the stairs. Destroy the crates at the ends of the catwalk to pass by.
    42. Head to the end of the walkway. Use the pillars as cover. There will be three CPs on each side of the tunnel. Take them out before you drop down.
    43. Go into the alcove. There is a health station and a pair of supply crates.
    44. Head out of the tunnel.
    45. There is a hole in the fence immediately after you leave the tunnel. Go through and drop down into the water.
    46. Swim through the water. There is a big hole in each fence. Swim through them until you get to the red train car.
    47. Climb up the ladder on the left of the car. This takes you to the roof. There is a hole at the far end. Drop through it.
    48. Speak to the Vortigaunt and the human. They will let you out on the other side.
    49. Use your Crowbar to smash the wooden pallet and the wooden barricade.
    50. Watch for the bird. It will get snagged by a tentacle hanging from the bottom of the bridge. This is a Barnacle. Kill it and move on.
    51. Stop before you come to the clearing. There are several CPs ahead, as well as a machine gun emplacement.
    52. Crouch and slowly make your way to the corner. The machinegun emplacement is on the right, on a platform. Shoot the gunner first before you shoot his companion. Go around the corner when the machinegun is unoccupied. Look for a red tunnel on your right. Head into it.
    53. Follow the tunnel into the hideout.
    54. Resupply.
    55. Climb the ladder at the far end.
    56. Get on the machinegun. Look to your right. You will see a metal sheet and a barrel. Shoot the barrel to drop the sheet down. This will complete the walkway.
    57. Use the machinegun to defeat the incoming CPs. Press E to use the machinegun. Press E again to let it go. Drop the machinegun as soon as a truck appears. When it stops, it will begin launching missiles at you.
    58. Run down the walkway and into the tunnel. There will be several Barnacles inside.
    59. Go through to the other side.
    60. Head into the tunnel on your left. Look for the bent bars across the entrance.
    61. Go through the tunnels.
    62. Break the supply crate in the second tunnel.
    63. TIP: Dive under the water when the CPs drop in the explosive barrels.
    64. Jump up onto the ledge at exit through the other side when the barrels go off.
    65. Emerge into the slough. Eliminate the two CPs off to your right before you leave the tunnel. The tunnel provides good cover.
    66. Head around to the right. There will be a box of ammo just around the corner, along with a CP.
    67. Shoot the CP. You will see three more CPs along a wooden bridge.
    68. TIP: Shoot the red barrels at the base of the bridge to kill all three CPs at once.
    69. Head under the busted bridge. Look for a sewer entrance at the top of a small hill. Use the Crowbar to clear the barrels.
    70. NOTE: The ground inside the sewer is slippery. Stopping quickly is not possible here.
    71. Kill the Barnacles inside.
    72. TIP: Throw an explosive barrel towards the Barnacles. Shoot it twice once it gets picked up. It will kill all the Barnacles nearby.
    73. Head out the other side of the sewer. Wait for the explosive barrel to go off before you exit.
    74. Head through the exit to your left. There will be several CPs on the street above you. You can either shoot them or ignore them.
    75. Climb the ladder to get over the gate.
    76. Swim to the far end and look to your left. There will be a ramp. Get up onto it and follow the wood planks around to the other side. Head into the tunnel.
    77. Drop down into the alcove. Pick up the cinderblocks by pressing E, then release them on the upper side of the seesaw. Pile everything onto one side until you can move across it. Head into the next tunnel.
    78. Head out into the slough. Avoid the helicopter at all costs.
    79. Slide down the ramp and head to your left. You should find a ramp leading up to a walkway. Quickly follow the walkway to the door. Pick up the barrels and toss them aside to gain entry to the door.
    80. TIP: Pick up a barrel and hold it between you and the helicopter. It will absorb some bullets for you.
    81. TIP: The helicopter's gun makes a whining noise when it is recharged and about to fire. Find cover when you hear it.
    82. Go through the tunnels. Go down the ladder on your right. You will find Medkits and ammo.
    83. Head back up the ladder and follow the tunnel. There will be Barnacles ahead. You can either throw things at them to bypass them or destroy them with explosive barrels.
    84. Continue through the sewer until you reach the next door. Head outside after the helicopter's gun finishes a firing cycle.
    85. Head to your left and sprint to the end of the walkway. There is a tunnel on the left at the far end.
    86. Go through the tunnel. Shoot the explosive barrels to destroy the barricade.
    87. Smash the wooden planks to gain entrance to the underground railroad stop.
    88. Resupply here. There are ammo crates on the upper level.
    89. Destroy the Manhacks with your Crowbar. Head through the open tunnel when you're done.
    90. Follow the tunnel and keep your Crowbar handy; more Manhacks are coming.
    91. Go past the tunnel exit. You will find some Medkits and ammo in a second room.
    92. Exit the tunnel and move across to the gate.
    93. Head through the gate and down the ramp. Go across the ledge and jump up the pipe. Smash the grate and go through the vent. You will emerge into a room with a bunch of supply crates. Smash them all and resupply, then head back down.
    94. Drop down into the slough.
    95. Follow the water. You will be attacked by three CPs with Submachine guns.
    96. TIP: Look for an explosive barrel up against a wall. Destroy it to reveal a small passage. Crouch and head down the passage. There will be a Zombie at the end, along with some supplies. Kill the zombie and head back out.
    97. Follow the tunnel to the end.
    98. Swim to the bottom of the pool. Let the blades push you around to the opening in the wall.
    99. Swim through the opening. There is a hole halfway through the tunnel where you can stop and catch your breath. Don't worry about losing health; you will gain it back once you can breathe again.
    100. Jump out of the water and turn around. Jump over the water and follow the large pipe out.
    101. Kill the four CPs that attack you at the far end.
    102. Look to your left as you emerge from the darkness. You should see some supplies.
    103. Get up onto the large pipe and follow it back in. Sprint through the steam vents when they are not spraying. They will burn you if you run through them.
    104. Destroy the wood planks on your right near the end of the pipe.
    105. Drop down into the hole. Go to your right to find some supplies.
    106. Head back into the alcove. Drop into the water.
    107. Swim to the far end and use the ladder to get out of the water. There will be two CPs ahead of you who will drop flaming barrels onto you. Dive back into the water to avoid them.
    108. Get back out when the barrels go off. Kill the CPs and move past them to the right.
    109. Take the tunnel on your right.
    110. TIP: CPs will come in from behind you. Use the alcoves on the side of the wall as cover while you take them out.
    111. Get your Crowbar handy; Manhacks are coming. Destroy them.
    112. Go through the wire gate and into the next tunnel.
    113. Destroy the supply crates for ammo and health.
    114. Smash the grate to enter the vent. Smash the grate at the bottom to drop down into the next room. There are more Manhacks ahead.
    115. Shoot some of the barrels to set them all off.
    116. Climb the ladder to the top. Carefully slide over onto the pipe. Walk to the far end and drop down onto the walkway.
    117. Go through into the next room.
    118. Follow the large yellow pipe down. You will find a red wheel on the far side. Press E to turn it. This will cause the water to rise.
    119. Go back to the first room. Follow the ladder down into the water.
    120. Swim down and to the left. You will find a pipe. Swim through it to come out on the other side of the fence.
    121. Swim all the way down. You will find some crates and barrels being held down by wood planks. Smash the planks.
    122. Push one of the crates to the walkway. Jump onto the crate, then onto the walkway to get up.
    123. Head out into the next tunnel.
    124. Climb the ladder. Drop down onto the wooden planks. Use them to get over the fence and into the slough.
    125. Kill the CPs and Manhacks that drop down onto you.
    126. Go where the CPs dropped. There will be a ledge that lets you jump up onto the walkway. Grab the supplies to your right.
    127. Head down the tunnel. There will be Manhacks inside, so be ready.
    128. Follow the tunnel straight to the end. There is a supply crate and a Medkit. There are also two Barnacles.
    129. Go back and take a left. Look for a ladder. Climb up onto the second level. Follow it around to the other side.
    130. Drop down where you see the lambda on the wall.
    131. Head through the tunnel.
    132. Drop down onto the wooden planks.
    133. TIP: You can run across the pipes for some ammo and health if you're low.
    134. Go through the sewer to reach the Railroad stop. Grab some ammo and health here.
    135. Continue down the sewer. The camp will come under bombardment. The 'shells' being dropped contain Headcrabs. Shoot them quickly before they dig into the ground.
    136. Proceed through the camp carefully. You will be attacked by more Headcrabs and some Zombies. Keep your SMG out and filled.
    137. Take a left onto the wood planks after you leave the camp. This will lead you to the airboat.
    138. Press E to board/exit the airboat.
    139. Make your way downriver.
    140. Stop and get out of the airboat when you reach the sluice gate. Go up the right side to find the wheel.
    141. Turn the wheel to raise the gate.
    142. Get back in the airboat and head down the tunnel.
    143. TIP: Drive over supply crates to pick them up.

  • Water Hazard

    1. Head down the ramp.
    2. Stop when you see the lambda on your right.
    3. Get out of the airboat. There will be a ladder to your right. Climb it and jump the gap to get some ammo.
    4. Get back in the airboat and continue downriver.
    5. Stop at the red barn if you need supplies. Continue on if you don't need to resupply. Note that there are Zombies in the barn that must be dealt with. Use the sides of the barn as cover; the Zombies will throw crates at you.
    6. Continue downriver when you're ready.
    7. Drive up the wooden ramp to get over the barricade. Take a right when you hit the water. A resistance member will drop supplies off the bridge for you.
    8. Get out of the airboat when you reach the next pool.
    9. Collect the blue barrels in the water and place them underneath the seesaw. You will see a metal cage under the water. This is where the barrels go.
    10. Get out of the pool and look for the open tunnel nearby. Go through it to find the other blue barrels. Toss the barrels into the water and place them in the cage with the rest. This completes the ramp.
    11. Get back in the airboat. Back up, then drive forward over the ramp.
    12. Continue downriver. Several groups of CPs will drop into the slough. You can either stop and fight them or plow through them.
    13. Take the ramp up ahead on your left to get past the barricade.
    14. Continue under the bridges and down river. Kill the CP on the dock. Drive through the supports under the dock to kill him without wasting bullets.
    15. Stop at the small jetty on you right. You will see a locked sluice gate ahead. Get out of the airboat and onto the walkway. Head inside the door on your left.
    16. TIP: Keep an eye out for supplies here.
    17. Go through the garage.
    18. Open the door at the far end carefully. There is a machinegun turret at the far end. Use barrels and crates as cover while you advance on it. You can also sit back in the doorway and snipe the gunner with your pistol.
    19. Open the door behind the machinegun. There will be three CPs hiding inside. Toss a grenade or two to get rid of them. Grab the supplies in here.
    20. Go through the door at the far end. Look to your right. Shoot the red barrels to blow them and knock out the sluice gates.
    21. Head back to the machinegun. Use it to kill the incoming CPs.
    22. Go back through the garage. Note that there will be CPs in here too. Use grenades to clear them out.
    23. TIP: Use green ammo crates for unlimited ammo refills. There is a grenade crate near the food dispensers in the garage.
    24. Head back to the airboat. Get in and head through the gates you destroyed.
    25. Head down river. A lot of CPs will drop at you from the bridges. Do not stop to kill them. Run them over or avoid them.
    26. Keep going until you start seeing missiles from a truck coming at you. Head to the right. Look for a white metal plate on the right side of the river. This is a ramp to get you over the burning barricade.
    27. Continue moving through the Combine lines. Don't stop for anything.
    28. Stop when you see a lambda on the wall. Get out of the airboat. Look for a metal basket with cinderblocks in it. Remove the cinderblocks. This lets the other end down, which contains supplies. Grab them and get back in the airboat.
    29. Continue down the river.
    30. Head to the right when you emerge from the tunnels. Look for a walkway and a door in the shade.
    31. Get out of the airboat and head to the door. Use your Crowbar to smash the lock.
    32. Head inside and take a left. Some CPs will head through the door. Grab the .357 Magnum on the table. Use it to waste the CPs coming through the door. Keep the Magnum handy.
    33. Head outside and up the stairs. Go through the red crates. There is a helicopter orbiting, which will strafe the area periodically with its machinegun (just like the last one.) Get into the open crate and use it for cover. Run ahead to the fence, then take a right.
    34. Go through the gap in the fence and into the open crate. There will be two supply boxes inside. Use the shipping crate as cover. Go through the other end. Look for the warehouse on your right.
    35. Head inside the warehouse and find cover. You will be attacked by several CPs on the upper and lower levels. Destroy them all.
    36. Find the stairs at the opposite end of the warehouse. Use them to get to the upper level.
    37. Jump across the shipping containers in the center of the room to get to the other side.
    38. Go through the warehouse using the left wall as cover from the helicopter. Go down the stairs and use the recharge stations at the far side.
    39. Go outside and take a right. Work through the red crates and look for a tower. Go through the metal gate and head into the tower. There are two CPs at the top. Kill them and get on the machineguns. Use them to blast the helicopter. You won't be able to destroy it, but you will scare it off.
    40. Grab the supplies and use the button on the control console to open the sluice gates.
    41. Take a right when you exit the tower. Go along this walkway to get back to the airboat.
    42. Drive the airboat through the open gate.
    43. Take a right at the turn. Ignore the helicopter. This one will drop bombs into the water. Don't run over them.
    44. Continue down this route until you see a dead end. Drive up the ramp and veer right.
    45. Head through the tunnel and take a left. Continue down this stretch of river. Avoid the bombs when you can. You probably won't be able to avoid them all.
    46. Go left over the sandbar when you come to the wooden barricade.
    47. Drive through the cement tubes. Try and go as straight as possible.
    48. Drive over the cement tubes in the next area. Continue through the slough.
    49. Take a right at the fork. You will head through a dry area, then down a ramp.
    50. Continue down river. Take a right under the bridge to avoid the barricade.
    51. TIP: Watch out for the Barnacles.
    52. Stay on the right side of the river. You will go up a ramp on the right side. Stay straight so you hit the platform on the other side.
    53. Get out of the airboat and head into the hangar. Kill the CPs inside. Use the controls to lower the airboat into the water. Grab the supplies before you go.
    54. TIP: You can also just ride over the platform if you're good on supplies.
    55. Go through the gates and take a left.
    56. Stop when the smokestack begins to topple; you can't make it past it.
    57. Drive up the fallen smokestack, then over it.
    58. Head straight into the tunnel.
    59. Stop when you reach the clearing. Arrange the airboat so it faces the barricade.
    60. Bail out. Go to the far end of the dark tunnel. There is a Zombie there. Kill it to reach the supply crate and some health.
    61. Go back to the clearing. Smash the supply crate in the metal cage.
    62. Throw the yellow lever next to the cage. This releases the ramp.
    63. Take the barrel off the ramp and toss it into the cage.
    64. Head back towards the dead Zombie. Look for a ladder against the left wall. Climb it.
    65. Jump down to the cement pipe. Go over the ramp, across the awning and onto the platform. Push the washing machine down into the metal cage. This raises the ramp.
    66. Get back in the airboat and drive it over the ramp.
    67. Take a left and continue on.
    68. Grab the supplies in the resistance base. Speak to the members.
    69. Head back to the airboat when you are ready. The Vortigaunt will finish mounting the gun shortly.
    70. Use the gun to destroy the boxes in the water.
    71. NOTE: The airboat gun is very powerful, but inaccurate. It has unlimited ammo, but must be allowed to replenish. Fire in short bursts.
    72. Head down the tunnel. You will be attacked by the helicopter at the far end. Use the airboat gun to send it packing.
    73. Continue downriver.
    74. Drive over the ramp and take a right. You will get trapped between two gates. Use the airboat gun to kill the CPs on the sides.
    75. Look for a metal ramp in the water. Use it to get to the walkway and past the gates.
    76. TIP: There is a missile truck just downriver. Use the airboat gun to shoot the incoming missiles, then to destroy the truck.
    77. Continue downriver.
    78. Head into the tunnel on your left. There will be CPs on each side. Wipe them out with the airboat gun.
    79. Destroy the missile truck up ahead. Continue downriver. You will see a dropship carrying another missile truck. Destroy the truck before it gets dropped off.
    80. Take a right at the fork if you need health or ammo. Take a left if you don't.
    81. NOTE: The resistance stop on the right has a CP, a Zombie and some Headcrabs in it. Kill them. The health is in the raised shed.
    82. Go up the sandbar after you turn left at the fork. This allows you to go up the ramp and into the tunnel.
    83. TIP: There are Zombies in the tunnel. Either run them over or blast them.
    84. Go through the flames and stick to the left side. Blast the CP at the top of the ramp.
    85. Head down the other side of the ramp and take a right. Go through the tunnel. Watch out for the Barnacle at the turn.
    86. Turn right after you emerge from the tunnel.
    87. TIP: Stop at the red crates ahead. Grab the supplies.
    88. Take a left and head to the far end of the area. Look for the red shipping crate that is half-buried in sand.
    89. NOTE: There are two missile trucks here that must be destroyed. One is immediately to your left as you enter the enclosed area, the other is down the dock on the left.
    90. Get out of the airboat. Go around to the other side of the shipping crate. There should be red barrels inside. Destroy them to make room for the airboat to get through.
    91. Get back in the airboat and drive through the shipping container. Take a left and follow the path. Try and pick up speed near the end.
    92. Drive over the rubble and over the jump. This should take you across and into the next tunnel.
    93. Take a left, then a quick right as you emerge from the tunnel.
    94. Go through the next tunnel and follow the river. You will emerge into a large, open area.
    95. Destroy the helicopter that shows up. This is your first priority. It will spray explosives in a large area and will take a couple passes to destroy.
    96. TIP: Use the stones as cover when the helicopter is making a strafing run.
    97. Head for the sluice gate once the chopper is down. Get out and climb the ladder. Turn the wheel until the gate raises.
    98. Get back in the airboat and continue on. Stop at the docks ahead.
    99. Get out and go up the ladder. Head for the water tower and accompanying building.
    100. Head inside the building. Use grenades to clear the CPs out.
    101. Resupply here.
    102. Leave the building and head around to the back. You should see a wooden bridge. Cross it and follow the walkway.
    103. Head to the end. Throw the switch at the control panel to open up the gate in the dam.
    104. Head back to the airboat.
    105. Go around to the dam side of the area. There will be a small jump in front of the hole in the dam.
    106. Back up a long way and clear any obstacles between you and the jump.
    107. Drive toward the jump and launch yourself through the hole in the dam.

  • Black Mesa East

    1. Head downriver. Stop at the docks on your left. There is a ladder next to the lambda on the wall.
    2. Climb the ladder and head past the cart. Go up the ramp and take a left. Look for a hole in the fence.
    3. Go through the fence to reach the airlock.
    4. Follow Judith down to Eli's Lab.
    5. Look around Eli's lab for some back story.
    6. Follow Alyx.
    7. Have fun with the Gravity Gun. Alyx will explain how to use it.
    8. Grab a wooden crate with the Gravity Gun. Drop it next to the structure Alyx is on. Jump up onto it to Move on.
    9. Follow Alyx to the next area.
    10. Catch what Dog throws you with the Gravity Gun. You'll have to do this a few times.
    11. Follow Alyx back into the facility.
    12. Follow Dog to the Ravenholm entrance.
    13. Climb up the elevator shaft. Use the ladder to the left. Smash the lock with your Crowbar.
    14. Head through the building.

  • We Don't go to Ravenholm...

    1. Go straight ahead. There is a Zombie to your left that will wake up when you get near it.
    2. Head into the building with lights on.
    3. TIP: There are gas canisters on the wall and large saw discs everywhere here. Both are excellent Zombie-killers that can be used with the Gravity Gun. Use them whenever possible. Feel free to come back to this room to pick up more of them.
    4. NOTE: Headcrabs attached to Zombies may survive if you use the saw discs on them.
    5. Proceed through the building carefully. Use your flashlight to check every corner.
    6. Take a right into the courtyard. Crouch to get under the blade trap. Use the lever on the left side to disable it.
    7. Wait until the Zombies come for you, then turn the blades on again to dispatch them.
    8. NOTE: There are several traps around to discourage zombies. Use them whenever possible.
    9. Head into the next room. Kill the Headcrabs that come in.
    10. Smash the wood planks to get to the next room. Bring a saw disc with you.
    11. Head through the alley to the next building. There are more Zombies and Headcrabs inside. Use grenades or the saw discs to kill them.
    12. Go through the building into the next alley. There is a sleeping Zombie that can easily be killed with a saw or red barrel.
    13. Head into the square with the burning pyre. Explore the square; there are some supplies to be had and Zombies to kill. Go around the side of the fire to turn the gas off. This allows you entrance to a doorway behind it. Go through when you are ready.
    14. Kill the Zombies on the upper floor before you use the stairwell.
    15. TIP: Use the red barrels to kill the Zombies easily.
    16. Use the Gravity Gun to clear the stairs.
    17. Clear the upper level.
    18. NOTE: There are two Black Headcrabs in the final room, on your left as you walk in. Kill them IMMEDIATELY.
    19. Turn around and look at the window. There should be a switch at the left end. Throw it.
    20. Head back to the square.
    21. NOTE: There will be another Black Headcrab waiting for you on the ground floor. Go to the catwalk overlooking the main level and shoot it from there. Also note that two more Black Headcrabs will drop down in front of you just before you leave.
    22. Go down the upper alley to the previously electrified fence. Climb over it and use the catwalk to get to the upper level. Jump across the alley to the next roof.
    23. Listen to Father Grigori.
    24. Look down to your left. There are some wood planks forming a bridge above the alley. Follow them into the next building.
    25. Kill the Zombie and the Headcrabs below you before you drop down.
    26. Smash the wood planks covering the door.
    27. Go through the room into the garage. Wait until the Zombies get into the red zone (look on the ground.) Throw the switch to drop the car on them. Repeat until the area is clear of Zombies.
    28. Move forward and use the next car trap to dispose of the rest of the Zombies.
    29. Drop the car in the alley once the Zombies are dead. Jump up on it to reach the upper level.
    30. Head along the planks into the open window.
    31. Go through the door to the next room. Open the door and toss a grenade in. Quickly close the door and let the barrels do the work.
    32. Head through and kill the Zombie in the next room.
    33. TIP: There are Black Headcrabs on a ledge across the alley. Use the fuel canister in the room to destroy them.
    34. Head out onto the ledge. There will be Zombies here. Kill them. Look down. There are Headcrabs and Zombies below. Use the red barrels to kill them.
    35. Kill everything in the alley. There are plenty of red barrels to do this.
    36. TIP: Look for a hole in the wall near the upper end. There are some Medkits and a pistol magazine inside.
    37. Go all the way down the alley. Look for a ladder on the wall. Climb it.
    38. Head into the rooftop to your left for some supplies. Note that there is a Headcrab inside.
    39. Go into the open window on your right when you're ready to move on. There is a Zombie inside that can be shot from the window.
    40. Use the saw disc and grenades to kill the Zombies on the stairs.
    41. Head downstairs and resupply.
    42. Go out into the street. You will see some Screaming Zombies running along the rooftops. One will come at you. Fill him full of holes and move on.
    43. Clear the streets of Zombies and Headcrabs. Go into the building with the open door when you're ready.
    44. Head to the roof. There will be some Zombies and Headcrabs along the way, but not many. Look for Father Grigori when you hit the roof. He will give you the Shotgun.
    45. Look down from the roof. You should see a water storage tower with water in it. Jump down into it. Use the ladders to climb to the roof. You will be attacked by Screaming Zombies. Use the Shotgun to fend them off.
    46. Go through the door into the building. Grab the supplies and call the elevator up. Two Screaming Zombies will come for you after you call the elevator. Blast them.
    47. Ride the elevator down. You will see your first Black Headcrab Carrier. Hit it with whatever explosives you have on you. Make sure to stay out of its line of sight. It will throw Black Headcrabs at you.
    48. TIP: Hit it with two Submachine gun grenades to kill it. Watch out for the Black Headcrabs when you hit the ground.
    49. Run up the ramps on top of the cars to get over the fence.
    50. Go into the open building. There will be a single Headcrab inside, along with some supplies.
    51. Head back outside and take a right.
    52. Go down the alley and take a left.
    53. NOTE: There is a Black Headcrab Carrier in a garage down the left side of the alley. There are also two Zombies in an alley to the right.
    54. Head to the right at the far end of the alley. There will be a set of stairs. Climb them to reach the control room. There is a yellow switch on the balcony. Throw it to move the platform above.
    55. Head back out and go to the right.
    56. NOTE: There will be two more Black Headcrab Carriers nearby. Deal with them quickly. Also note that there will be a bunch of Zombies (5+) coming out of the woodwork. Dispatch them.
    57. Go to the red building. Use the boxes to get up onto the walkway. Look to your right. There should be another ledge with a red barrel on it. Jump over to the ledge.
    58. Climb the ladder and follow the wood planks around to the rooftop. There are shotgun shells here. Grab them and go back. Take a left at the junction.
    59. Jump the gap to the platform, then jump to the next roof.
    60. Kill the Screaming Zombies and continue on.
    61. Ignore Father Grigori. You have to go away from the Church to get towards it.
    62. Jump across the catwalk to the other side. It will collapse. Just jump back onto it and climb up.
    63. Work your way through the building. There are plenty of fuel canisters and saw discs to use as weapons.
    64. Go up the ladder and out the door. You will emerge onto the roof. You will be met by a Black Headcrab and a Screaming Zombie. Kill them.
    65. Jump to the rooftop to your left. This will bring you down to the street.
    66. TIP: Stay on the rooftop until you kill the Black Headcrab Carrier.
    67. Clear the street.
    68. Head up the stairwell when you are ready. There will be some ammunition inside the door.
    69. Go up the stairs. A Screaming Zombie will follow you. Kill it and continue up to the roof.
    70. Grab the Medkits and shotgun shells. You will need them.
    71. Go to the edge and speak to Father Grigori. He will send the cart for you.
    72. Hurry back to the small alcove in the fence. This is right where you came through onto the roof. Use this as cover. A horde of Screaming Zombies are coming. This spot allows you to see them both and shoot them right when they hit the roof.
    73. TIP: Look for the pipes attached to the roof. If they are moving and clanking, a Zombie is coming up.
    74. Get in the basket and throw the switch to ride it down.
    75. Resupply at the table.
    76. Follow Father Grigori through the graveyard.
    77. TIP: There will be saw discs and red barrels. Use them whenever you can. Ammunition will run short.
    78. TIP: Save as many pistol rounds as you can. You will need them shortly.
    79. NOTE: Cinderblocks can also be shot at Zombies with the Gravity Gun to kill them. Also note that there is a Black Headcrab Carrier at the end.
    80. Go through the gate, Head through the building to the mine shaft.
    81. NOTE: There are wooden beams around the outside of the shaft. Use these to work your way down. DO NOT drop to the bottom! If the fall does not kill you, the Headcrabs will. There are Black Headcrabs down there as well. This is why you saved pistol rounds.
    82. Shoot as many Headcrabs from the catwalk as you can. They can't get you up here, so you are safe for now. Go around to the small office. There are supplies inside.
    83. Go down the catwalk and run to the other catwalk when you've either expended your pistol rounds or killed all the Headcrabs.
    84. Go to the far end and climb the stairs. Jump off the catwalk onto the wooden beams. There are three more Headcrabs below. Kill them before you drop down. Note that there are two Black Headcrabs just around the corner.
    85. Drop down into the water. Swim ahead.
    86. NOTE: There is a side-tunnel with a Barnacle tentacle hanging down. Let the Barnacle grab you. Use the Gravity Gun to pull the supplies to you on your way up. Kill the Barnacle, then continue on. Look for the wooden beams. Swim through them and out.
    87. Head down the tunnel to the mine cart. Throw the switch to activate it.
    88. NOTE: The mine cart travels back and forth down the mine in order to kill Zombies. At each gap in the wall, there are groups of Zombies. Move forward, let the cart kill the Zombies, then move forward to the gap they occupied. Let them come and get killed, then move forward again. Keep going until you're out.
    89. Go outside and take a right. There will be some ammo and a Black Headcrab. Kill the Headcrab and follow the train tracks to the right.
    90. Move up to the bridge. Note that there is a Combine Sniper inside. Let him kill the Zombies.
    91. Smash the supply crate to get some grenades. Toss one into the window where the Sniper is shooting from.
    92. Continue down the tracks. Note that there is another Sniper up ahead. This one is facing you.
    93. TIP: Use the Gravity Gun to pull the supplies on the right toward you. Do not run over to them. The Sniper will shoot you if you do.
    94. Follow the train's right side. Stay low. Crawl underneath the log train to get closer to the Sniper.
    95. Rush forward into the red train car. You will find more grenades. Use them to kill the Sniper.
    96. Continue down the tracks. You will meet some Overwatch. Hit them with the Shotgun. You will find the Overwatch Pulse Rifle and some ammo in the red shipping crate. Grab it and move down the tracks.
    97. Crawl under the train to reach the parking lot. There will be several Overwatch inside. Use the Gravity Gun to fling red barrels at them.
    98. Head inside. You will find the Overwatch fighting resistance members. Kill the Overwatch and meet with the resistance.
    99. Follow Leon inside and resupply.
    100. Go through the door in the back when you're ready.

  • Highway 17

    1. Get in the buggy. The crane will pick it up and drop it on the sand.
    2. Use the Gravity Gun to put the buggy back on its wheels.
    3. Get in the buggy.
    4. Drive down the beach, away from the dock.
    5. Look for a ruined dock a ways down the beach. There is a ramp just to the left of it.
    6. Drive up the ramp. There is a white ramp ahead that lets you jump over a busted bridge. Hit the turbo on your way to the jump.
    7. Head up the hill. You can stop at the shack if you need health. Otherwise, head into the tunnel.
    8. Take a right after you exit the tunnel. The bridge up ahead is broken, so you need to go around.
    9. Head down to the beach and take a left at the water. Go up the hill to the thumper. This will allow you to look around without being harassed by the Antlions.
    10. TIP: Feel free to check out the house if you want. There is ammo, health and a grenade crate inside. There are also several Black Headcrabs. Fortunately, the grenades will help clear them out. Enter at your own risk.
    11. Drive through the white fences to the other side when you're ready to go.
    12. Drive down the beach to the next thumper. This camp is occupied by Overwatch. Kill them all.
    13. TIP: One of the Overwatch may have a shotgun. Watch out for him.
    14. Continue down the beach when you're ready.
    15. Stop at the next thumper. There are three Overwatch that are easily killed with the tau cannon.
    16. TIP: There are supplies in the boat house.
    17. Get back in the buggy. Head down the beach when you're ready.
    18. Go past the last thumper and into the resistance base. Park the buggy and head for the red and white building.
    19. Head down to the basement. You will be given an RPG launcher.
    20. NOTE: There are spare rockets on crates in nearly every building here.
    21. Go outside with the troops. Watch for Gunships.
    22. TIP: There are two ways to hit the Gunships.
      1. Wait for them to shoot, then fire.
      2. Aim away from them, then direct the rocket towards them in a roundabout way. This makes it harder for them to shoot down.
    1. Destroy the Gunship. Make sure you refill your rockets.
    2. Speak to Colonel Cubbage again. He will have someone open the gate for you.
    3. Get in the buggy.
    4. Head to the white gate and continue down the road.
    5. Take a right at the busted bridge. Head down to shore.
    6. Head right when you start seeing water. Park the buggy by the thumper.
    7. Get out and turn the thumper on.
    8. Head up onto the dock. Fight your way to the crane.
    9. Climb the crane and press E to get into the cab. Use the crane to bring the buggy onto the far side of the dock. You can also use it to crush the soldiers there. Drop the buggy onto them like you dropped cars onto Zombies.
    10. Use the crane to knock the bridge over.
    11. Head into the warehouse. There will be some Overwatch inside. Use your pulse rifle to clear them out.
    12. Head to the office in the back. Resupply and flip the switch to open the gate.
    13. Get in the buggy.
    14. Go through the warehouse and take a right. Head up the ramp and clear out any enemies.
    15. Drive through the big yellow warehouse. There is a ramp inside that leads you through a window. Drive straight and fast, and you'll make it.
    16. Take a right and head up the road. Stop when you come to the bridge. Use the bridge as cover while you destroy the gunship with your RPG launcher.
    17. TIP: Keep going if you run out of rockets. There is a white van up ahead with a rocket crate in it.
    18. Get back in the buggy. Back up, then make the jump over the bridge.
    19. Stop when you get to the cars. Use the Gravity Gun to blast them out of the way.
    20. Continue down the road. Go through the tunnel.
    21. Stop when you see the grey-blue ball pop out of the ground. These will attach to you and shock you. Grab them with the Gravity Gun and blast them over the cliff.
    22. Get in the buggy and drive down the road slowly. More of these balls will appear.
    23. Head through the Overwatch-controlled camp. You can stop and clear the building for ammo and supplies.
    24. Continue up the road. Use the cars for cover while you eliminate the soldiers. Use the Gravity Gun to blast away the cars.
    25. Drive over the rubble slowly and carefully. Losing the buggy means you have to start from the last save point.
    26. Use the Gravity Gun to clear the car pileup.
    27. TIP: Zoom in on the sign that says 'Petrol' off in the distance. There is an Overwatch Soldier on it. Try to shoot him off.
    28. Continue into the camp. Fight your way through it to the truck on the other side. Use the Gravity Gun to blast it over the edge. This will bring the barrier down, allowing the buggy to move on.
    29. Get back in the buggy and continue up the road.
    30. Continue into camp. Clear the camp of enemies.
    31. Head into the main building. Use a table or box to get to the upper level.
    32. TIP: There is a Black Headcrab Carrier on the upper level. Be ready with the Shotgun.
    33. Grab the crossbow and supplies.
    34. Head back outside. Stock up on rockets.
    35. Go around to the right side of the complex. Go all the way to the edge. You will see a path that leads down below the building. Follow it.
    36. Blast the Black Headcrab Carrier with a rocket to destroy it.
    37. Head back down the low path and follow it to the door. Go through the door. Grab the supplies in the room.
    38. Go through the other door.
    39. Head across the walkway to the other room. Restock your rockets.
    40. Take the stairwell up. You will emerge onto a catwalk. Head to the right and out as far as you can.
    41. Do a sprint-jump across the gap to the bent catwalk.
    42. NOTE: There are several ways across the bridge, all equally dangerous. The only goal is to reach the far end of the bridge.
    43. Head downstairs when you reach the far end.
    44. Eliminate any enemies inside.
    45. Head outside to the catwalk. Take a right. There will be a ladder at the far end. Climb it.
    46. Clear the enemies on this level. Take the stairs up when the coast is clear. There will be two Overwatch behind a barrier. Kill them. Use the Gravity Gun to pull the power plug.
    47. Use the recharging stations and prepare to fend off another Gunship.
    48. Hit the switch on the wall next to the communications console.
    49. Head back across the underside of the bridge. Destroy the Gunship as soon as you can.
    50. TIP: There is a way station halfway across the bridge with a rocket crate.
    51. Get back in the buggy. Head up to the bridge. Park the buggy behind the train. This is important!
    52. Get out and start walking down the bridge. Stick to the far right side. Keep walking until the train appears.
    53. Run back to the buggy once the train goes by. Get in and drive down the tracks.
    54. Take a left at the end of the tracks. Head down the ramp and into the tunnel at the far end.

  • Sandtraps

    1. Head through the tunnel until you hit the mess. You'll need to get out to clear the mess. Kill the Zombies before you start clearing things.
    2. Proceed through the tunnel and down the road.
    3. Stop at the house if you need supplies. Skip it if you don't. Inside you will find ammo, Medkits, power packs and several blue shocking balls. Use the Gravity Gun to punt them through the windows.
    4. Continue up the road until you hit the next checkpoint.
    5. Bail out and destroy the Combine forces. Resupply where you can. There is a Health Box on the left tower.
    6. Head down the road.
    7. Bypass the gap by going around it to the left.
    8. Head up the hill to the right when you come to the tanker truck barricade.
    9. Stop in the camp. Several Combine troops are going to drop on the other side of the barricade. Use the barricade as cover.
    10. Search the camp. There are batteries missing from the system that powers the gate. The first battery is nearby on a mattress frame. The other is outside the building, underneath a bathtub.
    11. Replace the batteries.
    12. Get back in the buggy. Drive into the tunnel.
    13. Stop at the camp ahead. Park the buggy in the garage to the left.
    14. Use the white door to get out.
    15. Help the resistance fend off the attack. Several dropships will be coming in to deliver Overwatch troops. You cannot destroy the dropships, but you can kill the troops.
    16. TIP: Use grenades and your pulse rifle to fend them off.
    17. Destroy the Gunship that comes in.
    18. TIP: There is a rocket crate on the upper level of the lighthouse.
    19. Follow the resistance member to the lighthouse path once the Gunship is down.
    20. Follow the cliff path through the cave.
    21. Head to the left. Stay on the rocks or wood planks. As long as you're not on sand, you're ok. If you step on sand, the Antlions will attack.
    22. Make your way through the canyon to the large open area.
    23. Go to the large rocks in the center of the area. Use the wood beams to get across.
    24. Jump up on the crate. Follow these rocks around. Look for a long set of two grey wooden boards. Use this as a bridge.
    25. TIP: KEEP THIS BEAM WITH YOU. It will get you through the entire area. Simply pick it up, set it down, walk across it. Pick something else up, set it in front of you, get on it. Bring the grey beam around again. Repeat until you reach the ridge at the far end.
    26. TIP: Stop at the second house. There is a generator behind it. Turn it on. This will switch on a thumper. There are also a bunch of supply crates around the thumper.
    27. Drop down on the other side. Grab every supply crate you can BEFORE you hit the ground. You will be attacked by a Myrmidont. Kill it with whatever explosives you have.
    28. Follow the Vortigaunt once the Myrmidont is dead.
    29. Learn how to use Pheropods.
    30. Head up the ramp and through the gate.
    31. Go through the tunnel. Bring the Antlions down the beach. From now on, you will never need to shoot another Antlion. They will always be on your side.
    32. Climb and disable the first thumper.
    33. Run up and disable the second thumper.
    34. Get behind a rock. Use the Pheropods on the Combine troops to have the Antlions attack them.
    35. Throw a Pheropod into the bunker. Go around back and help the Antlions clear the bunker.
    36. Continue down the beach once the bunker is cleared.
    37. Climb and disable the third thumper.
    38. Use the Antlions to clear the second bunker.
    39. Head down to the water. Use the seawall to circumvent the third bunker.
    40. Go back up the embankment and clear the third bunker. Use the Antlions to clear any Combine troops.
    41. Run across the field and up the slope. Look for a hole in the cliff wall. Head inside.
    42. Use the Antlions to clear the facility of troops.
    43. TIP: Find cover if all of your Antlions die. They will respawn in a few seconds.
    44. Take a right when you emerge from the far end of the facility.
    45. Use the Antlions to clear the outlying bunkers. Head inside and follow it around to the left.
    46. Send the Antlions to the far end of the field. Take cover behind a rock or in a bunker. Let the Antlions do the work.
    47. Head up the slope (where the Combine troops are coming from).
    48. Move over to the edge of the cliff. Look for a wooden railing. Follow it up.
    49. Look for the wood pole sticking out of the ground. You will need to sprint-jump off the end.
    50. Continue up the slope.
    51. Use the Antlions to kill the Zombies. Smash the supports out from the awning. This drops one end down. Use it as a ramp to get further up the cliff.
    52. Toss a Pheropod up onto the platform above you. This will send the Antlions to kill the troops shooting you from above.
    53. Move up to the large pipes. There will be a ladder on the left side. Climb it.
    54. Go around to the other side of the catwalk. Jump over to the supply crates. Smash them for supplies.
    55. Follow this path. You will need to do another sprint jump.
    56. Climb the cliff. Use the small steps in the wall.
    57. Head into the large pipe. There will be a Screaming Zombie. Let the Antlions deal with him.
    58. Follow the pipes.
    59. Go across the pool at the end. There is a ladder. Climb it.
    60. NOTE: There are three guard towers in this area. Each one contains two to four soldiers. Use the Crossbow or your Magnum to take them out if your Antlions can't.
    61. Shoot down the Gunship that comes for you.
    62. TIP: There are rockets in a supply room at the other end of the compound from where you came in. There is also a rocket crate on the upper level of the courtyard. Look for the fire in the wall. The rocket crate is just to the left.
    63. Look for a blue shipping container with supplies in it. There is a stairwell near there. Go up.
    64. Head to the hole in the wall. You should be able to see a fire inside.
    65. Jump inside. Turn the red wheel to extinguish the first fire.
    66. Duck under the pipes. Look to your right. Turn the red wheel to extinguish the second fire.
    67. Follow the tunnel into Nova Prospekt.

  • Nova Prospekt

    1. Jump downstairs.
    2. Go through the hole in the lit cell.
    3. Head outside. There is an Auto Gun on the other side of the metal bars. Use your Crowbar to knock it down. This will allow Antlions into the facility.
    4. Follow the hallway to the right. Look for the exit sign.
    5. Go up to the top of the stairs. Climb through the bent fence. Look to your right. There are two more Auto Guns. Knock them over if the Antlions can't.
    6. Head down the hall.
    7. Go into the office. Use the recharge stations.
    8. Go down the hall, take a left at the end. Go up the stairs.
    9. Knock over the two Auto Guns.
    10. TIP: Find the doorway with the door leaning out. Blast it away with the Gravity Gun. There is a supply crate inside.
    11. Go past the downed Auto Guns. Go through the door.
    12. Head through the flooded room. Watch out for the Barnacles.
    13. Go to the far end and up the stairs.
    14. Follow the catwalk out of the room.
    15. Climb the rubble and go through the doors.
    16. TIP: There are three Swift Headcrabs on the other side.
    17. Drop down to the second level. Go across into the next room.
    18. Shoot the barrels into the Auto Guns to disable them.
    19. Head to the top level and take a right.
    20. Follow the hallway. Drop down to the lower level when the walkway stops. Time to fight another Myrmidont.
    21. TIP: Rush past the Myrmidont into the room it came out of. There is a large pillar in the center of this room. Keep the Myrmidont on one side. This will allow you to shoot it without getting hurt.
    22. Look for the barricaded doors. Dismantle the barricade with the Gravity Gun.
    23. Go through the doors.
    24. Head around to the left. There will be a long hallway with a pair of Auto Guns and some troop at the end. Use the pillars for cover. Have the Antlions advance ahead.
    25. Go through the hall the left wall when the coast is clear.
    26. Head to the end of the hall. Use the Gravity Gun to pull the plug on the barrier.
    27. Go into the office. There is a red switch on the left wall. Flip it to green. Go through the other door. The bars on the left have opened.
    28. Go through the gate and up the stairs.
    29. TIP: There is a red laser trip bomb at the top of the stairs. Use the Antlions to detonate it.
    30. Clear the office. Hit the red switch beneath the windows.
    31. Go through the door and drop down to the lower level.
    32. Go through the gate. This is the gate you couldn't access.
    33. TIP: Grab something and use it for cover as you advance on the Auto Gun.
    34. Disable the Auto Gun. Look along the wall behind the Auto Gun. There should be a vent.
    35. Go through the vent. You will emerge into a room with a large fan.
    36. Pick up the cinderblock with the Gravity Gun. Move forward until the cinderblock gets jammed in the fan.
    37. Duck under the fan and go out the other side. Toss a grenade ahead of you to clear the room.
    38. Use the Gravity Gun to pull the plug on the barrier.
    39. Go through the lit hallway and up the stairs.
    40. Use the Antlions to clear the hall. Use the alcoves along the left wall as cover.
    41. NOTE: There will be enemies on two levels. Watch out.
    42. Take a right through hallway B4.
    43. NOTE: There are two Auto Guns at the end of the hall. Use the items to the right as cover.
    44. Head upstairs and back through the first hall. Use the cells as cover while the Antlions advance.
    45. Go up to the third level.
    46. Make your way around to the office. Use the recharge stations on the walls.
    47. Flip the switch on the wall next to the recharge stations.
    48. Go straight through the corridor you just opened.
    49. Resupply at the office.
    50. Head down the corridor. Clear the Combine barricade.
    51. Go around the corner. There are two Auto Guns at the end of a hall to your left.
    52. Use a barrel or crate as cover while you advance on them.
    53. Go into the laundry room. Let the Antlions clear it out.
    54. Go up the stairs at the far end.
    55. Clear the hallways. Let the Antlions do this.
    56. Head into the kitchen. There are two Auto Guns you will need to disable. Shoot anything in the kitchen at them to knock them over.
    57. Head through the hole in the wall.
    58. Throw a grenade to clear the stairs.
    59. Go up the stairs and take a left.
    60. Head up into the office on your right.
    61. Jump down through the broken window. Several Overwatch troops will flood in shooting a Myrmidont. Let the Myrmidont kill them.
    62. Use the pillars as roadblocks while you blast the Myrmidont.
    63. Go to the metal wall. Look to the left. There will be some junk blocking a hole. Clear it and go through.
    64. Go through the next door. Drop into the canyon.
    65. Head through the canyon and look to your left. There should be a hole in the wall. Grab a crate and set it at the base of the hole. Jump on the crate and into the hole. Kill the Headcrab.
    66. Drop down.

  • Entanglement

    1. Go through the hole in the floor. Follow the tunnel to the end. You should see Alyx on a platform above you.
    2. Drop down to the lower level. Take a right. Follow the corridor to the end and wait for Alyx.
    3. Follow Alyx.
    4. Clear the hall. There will be three Overwatch troops.
    5. Head into the room down the hall, on the left.
    6. Follow Alyx. She will stop to speak to Eli. Follow her again when the conversation is finished.
    7. Go through the hallway.
    8. TIP: There are some supplies and two Swift Headcrabs in the room to your left.
    9. Go through to the office once the gate opens.
    10. Move the green bookcases to find the vent.
    11. Head through the vent. Keep your Crowbar handy; there will be Headcrabs.
    12. Drop some grenades before you leave the vent. There are several Swift Headcrabs below.
    13. TIP: Look to your right. There are two Auto Guns through the window. The top of the window is broken. You can shoot one of the Auto Guns and knock it down with your Magnum.
    14. Leave the vent.
    15. Go through the gate Alyx opens for you.
    16. Head to the hall on your left. Throw a grenade down the hall. This will take care of the Auto Guns and the enemy troops.
    17. Follow the hall. There will be a barricade. Throw another grenade to take it out.
    18. Fight your way to the blue barrier. Look past it into the room. Throw a grenade inside to disable the barrier.
    19. Go through the room.
    20. NOTE: There will be an Auto Gun immediately to your right. Use the Gravity Gun to get rid of it.
    21. Disable the Auto Guns down the hall. Use cover to advance on them.
    22. Go through the door on the left.
    23. Follow the hall to the control room. There will be two soldiers guarding it. Take them out.
    24. Resupply quickly. Look for a large metal cabinet containing two Auto Guns. Press the button on the cabinet to open it. Use the Gravity Gun to pick up the Auto Guns. Set them down where you would like them to defend.
    25. TIP: Enemies will be coming from each side (not the way you came.) Set one Auto Gun to defend each direction. Use the file cabinets to cover up the windows. This will prevent you from getting shot through them. Crouch below the control panel for the best cover.
    26. Defend the control room from attack. Use the recharge stations when you need to. There will be Manhacks and a lot of enemy soldiers.
    27. Go downstairs. Take a left past the rows of prisoner capsules.
    28. Clear the door at the end of the hall. Head down the stairs. Go through the door at the bottom.
    29. Kill the Headcrabs. Go through the door on the left.
    30. Head through the next door and down the stairs into the flooded room. You must reach the other side of the room without touching the water.
    31. Go to the top of the stairs.
    32. Climb onto the large pipes. A Headcrab will drop down next to you. Kill it or punt it into the water.
    33. Drop down onto the sparking console.
    34. Jump up the pipes on the wall. Jump across to the short walkway. Climb the ladder. You will find several blue barrels and blue plastic crates. Bring these down to the water. Use them to create a bridge to the next walkway.
    35. Go across your barrel bridge up jump up to the walkway.
    36. Go through the door.
    37. Kill the Zombies. There are some supplies in the room with the sparking wires.
    38. Destroy the crates and head up the stairs.
    39. Clear the doorway. Head down the hall to your left.
    40. Go up the stairs. Jump over the ledge on either side.
    41. Clear the soldiers out. Head into the small supply room.
    42. Release the three Auto Guns. Set them up to cover both entrances to the room.
    43. Fend off the soldiers.
    44. TIP: Hide in the cabinet. It provides good cover.
    45. TIP: Hold one of the Auto Guns. It will keep shooting in your hands. This also allows you to quickly replace a downed gun.
    46. Follow Alyx.
    47. TIP: Bring an Auto Gun with you. You'll be very glad you did.
    48. Kill the Combine troops at the end of the hall. They bunch up, so use grenades on them.
    49. Follow Alyx through the security station to Dr. Mossman.
    50. Head into the teleport chamber. Set up Auto Guns at each blue barrier when you are able. Don't bother covering the way you came in. Keep your fourth Auto Gun on you in case of emergency.
    51. Hold out until the portal is charged.
    52. Get in the portal when Alyx says to.
    53. Leave Dr. Kleiner's lab.
    54. Drop down the shaft that Dog stands next to.

  • Anticitizen One

    1. Leave the shaft. Take a right. Head down the alley to the white van.
    2. Crouch and take cover. There are Combine soldiers down the street. Do not shoot them. Wait for Dog to throw the van at them.
    3. Stay back and let Dog handle the Combine. Find an alcove and stay there until everything is dead.
    4. Go through the gate Dog tears open for you.
    5. Look to your left. There should be a bent fence. Jump over it.
    6. Head into the building. Go left down the corridor full of rubble. Climb over the rubble.
    7. Go out into the square. Meet up with the resistance at the far end.
    8. Take a left down the alley. Follow it to the town square. There will be resistance members pulling down the giant screen.
    9. TIP: You now have a squad to help. Press C to send them to the location you are looking at. Press C twice to recall them. Don't worry if they get killed. There will be others.
    10. Wait for the Combine soldiers to appear. Go into the door they came out of.
    11. Go through the alley. Look for the stairs. Head up.
    12. Move forward. Use the Gravity Gun to pull up the metal sheet and toss it away. Look down. Use the Gravity Gun to pull the Hoppers up, then drop them. Once you've pulled them up, you can throw them or set them as traps. Launching them at something will detonate them.
    13. Head up the stairs. There are supplies in the shed.
    14. Take a left. This will lead you into the street.
    15. Take cover when the Strider comes by. Let it pass.
    16. Head up the street. Make sure you take out the CP in the tower.
    17. Go through the alley to the right. This leads into a small square.
    18. TIP: Look for the lambda near a small red shed. Pull the junk out of the way. There are supplies inside.
    19. TIP: Use the Hoppers to kill the CPs.
    20. Head down the alley. Follow the CPs.
    21. Jump over the fence.
    22. Go into the building at the end of the alley.
    23. Pass through the building into another street.
    24. Meet the resistance under the bridge.
    25. Look for a dark doorway under the bridge. Go through.
    26. TIP: There are supplies and a Headcrab in the corner.
    27. Go upstairs.
    28. Go into the apartment. There are supplies and CPs in here. Have your Shotgun ready.
    29. Look for the room with a hole in the wall and ceiling.
    30. Drop down through the hole. Disable the Auto Guns immediately.
    31. Fight your way up the street. Stop when you get to the barricade.
    32. Look to your left. You should see a hole in the wall with flames. Go there. You will find a door.
    33. Grab the Hopper and kill the CPs with it.
    34. Go through the apartment. Head upstairs.
    35. Drop down through the other side.
    36. Clear this side of the barricade.
    37. Get up on top of the barricade. Hit the switch at the far end to open the barricade.
    38. Follow the catwalk up into the building.
    39. Clear the floor.
    40. Go downstairs. Clear the floor. There are lots of CPs and supplies here. Refill while you can.
    41. Continue down another floor. Clear it out. This one has Manhacks as well as CPs.
    42. TIP: Shoot the Manhacks at the CPs with the Gravity Gun.
    43. Go downstairs again.
    44. TIP: There is an Auto Gun immediately to your left. Grab it and get rid of it.
    45. Disable the two Auto Guns.
    46. Drop through the hole.
    47. Go down the corridor to your left.
    48. Head out into the street. You will be attacked by several Manhacks. Grab them and blast them against the walls.
    49. Duck under the rubble. Head to the right when you hit the tanker truck.
    50. Go around the truck to the fence. Shoot the lock off the door.
    51. Go through the corridor.
    52. Destroy the Manhacks.
    53. Go through the door at the far end. You will emerge back onto the street. There is a machinegun emplacement at the far end of the street. There are also plenty of red barrels. Use them to blast the CPs and take the machine gun. The resistance is waiting at the far end. You will need to hold out until they can extract you.
    54. Get on the machine gun. Use it to fend off the oncoming Manhacks and Combine troops.
    55. Go through the hole the resistance makes for you. Go straight through the hole in the far wall. The door is locked. You need to find a way around.
    56. This area is crawling with Zombies. Stand on top of a car and let them come to you. Use the cars, crates and anything else you can find to pick your way across the toxic muck.
    57. TIP: There are two saw discs in the back of the pickup truck.
    58. Look for a white car at the far end of the tunnel. There is a pipe leading up from it.
    59. Climb the pipe. You will find a vent. Smash it and drop into the side tunnel. Head to the far end.
    60. Open the door to let your squad in. Go up the stairs. You will emerge into the street. Step out but get back to the entryway when you hear the shells come down. Several Swift Headcrabs will be coming your way.
    61. Go down the green alley when the Headcrabs are dead.
    62. Go to the fence to speak to the resistance member.
    63. Turn around. You should see an alcove with a door. Go through the door.
    64. Make your way through the apartments. Check all the rooms for supplies. Stay away from the windows.
    65. Go down the stairs at the end. This leads you into a small square. You will have to wait for the resistance to open the door. Head inside when they do.
    66. Go up the stairs. Work your way through the apartment. This one has Combine soldiers in it. Be ready.
    67. Drop down a level when you hit a dead end.
    68. Fight your way to the room with the open wall. The resistance will drop the bridge for you.
    69. Run across and clear this building.
    70. Keep dropping down. You will encounter several Headcrabs, two Screaming Zombies and a Zombie.
    71. Kill them all and continue on. You should wind up in a small square. Use the Hoppers to kill the enemy troops. Grab the supplies in the red shack.
    72. Go through the door on the upper level.
    73. Make your way to the roof. Grab some health at the lambda.
    74. Drop the bridge. Several Combine troops will come across. A single grenade will deal with them. Watch for enemies on the rooftops.
    75. Go across the bridge.
    76. Clear the building. Keep the Shotgun ready. There are a lot of Overwatch troops inside. Use grenades to clean them out quickly.
    77. Drop through the far side of the upper level to get around the barricade. Go through into the next room.
    78. Drop a grenade down to kill the Overwatch and the Screaming Zombies.
    79. Go into the alley. Use the Gravity Gun to pull the supply crates to you.
    80. Go back inside and go up the staircase.
    81. Head through the hallway. Go into the last room on the right. There will be a hole in the floor. You will see Auto Guns shooting Zombies. Let them kill the Zombies before you drop down.
    82. Disable the Auto Guns.
    83. Use the recharge stations. Stay away from the door.
    84. Head downstairs. There are several Overwatch on this level and the next. Use the Shotgun to take them out quickly.
    85. Take the opposite door from Alyx. It is down the hall to your right.
    86. Open the door and kill the troops inside.
    87. Go through the corridors. Head outside. You will need to hold this area until Alyx can expose the core. There are several supply crates around. Pull them inside the fountain area and smash them.
    88. TIP: There are two Hoppers nearby. Grab them both and set one at each blue barrier.
    89. Get behind the low wall. Use it for cover while you hold the position.
    90. Hold off the attack until Alyx can expose the core.
    91. TIP: There are recharge stations in the control blister where Alyx is.
    92. Blast the core with the Gravity Gun. The core is behind the large steel block.
    93. Run through the gate.
    94. Jump down into the slough where Alyx is pointing. You will find some supplies and a door.
    95. Head through the tunnels.
    96. Blast the door open with the Gravity Gun.
    97. Drop down. Use the Gravity Gun to lift the beam on the other side of the door. Go through.
    98. Look to your right.
    99. Pull out one of the barrels. Smash the boxes. Climb up and onto the pipes.
    100. TIP: Have the Gravity Gun ready; Manhacks are coming.
    101. Go through the vent to the other side.
    102. Take a left. Destroy the Manhacks and continue down the corridor to find some supplies.
    103. Head back to the room.
    104. TIP: Pull the boxes off the shelf to reveal a supply crate.
    105. Take a right. There will be Overwatch above you. Shoot them and take the stairs down.
    106. Go all the way to the bottom. Go through the door on your right to find some supplies and a Black Headcrab.
    107. Look through the window. Use the Gravity Gun to lift the bar and open the door.
    108. Go through.
    109. Follow the path around. There will be several Headcrabs and a Black Headcrab. Kill them.
    110. Take the path around and up the stairs. Watch out for the Barnacles.
    111. Get your Shotgun. Go up the stairs. Look to your left. Shoot the pole. This will drop several Black Headcrabs down. Shoot them immediately with the Shotgun. There are supplies behind them.
    112. Go back down. Drop into the slough. Kill any remaining Zombies.
    113. Go to the far end.
    114. Make your way through the low tunnel. There will be several Headcrabs inside.
    115. Continue down the ramp.
    116. TIP: Look to the right. There will be some supplies down a long, small tunnel. Use the Gravity Gun to pull them.
    117. NOTE: There is a Black Headcrab Carrier just beyond. Be ready to kill it.
    118. Jump over the yellow pipes. Grab the supplies at the end.
    119. Go back and up the ramp. There will be a ladder on your left. Climb it.
    120. TIP: There is a Black Headcrab at the top.
    121. Follow the tunnel to the left.
    122. Take a left again. There is a Black Headcrab at the far end and another in the small pit to the left. Kill them. Go through the center column on the left side (where the barrel is.) There is another Headcrab behind it.
    123. Head up the ramp to the pipes. Jump onto the pipes and follow them up.
    124. Get onto the walkway. Go around to the skinny catwalk. Start walking across it, then stop. An enemy troop will destroy the catwalk. You can still use it. Just hurry across.
    125. Get into the red shack. Throw the switch. A cargo elevator will come to meet you. DO NOT shoot the red barrel.
    126. Wait until the elevator reaches you. Throw the switch again, run out and jump on the elevator.
    127. Use the barrels as cover while the elevator ascends. Shoot the red barrel at the first soldier you see.
    128. Get off the elevator. Jump onto the catwalk. Follow it to the wall.
    129. Go around to the left. Take the ladder up.
    130. NOTE: Combine Elites will be dropping in. Be on your guard.
    131. Go across the pipes to the crossbeam that runs under the catwalk.
    132. Go across the beam to get up onto the catwalk.
    133. Follow the catwalk around to the green scaffold. Climb the ladder.
    134. Go to the end of this catwalk. Drop down to the next level. Go to the wall and grab the supplies.
    135. Drop down to the balcony just below.
    136. Go through the doorway.
    137. TIP: Watch out for the Hoppers.
    138. Head down the stairs.

  • Follow Freeman

    1. Resupply.
    2. Move into the street slowly.
    3. Dash to the doorway across the street. There is a sniper at the far end of the street.
    4. Wait for the sniper to shoot. Run up the right side of the street after the sniper shoots.
    5. Keep working your way up the street. Use the cars and doorways for cover.
    6. TIP: You can try to take out the sniper with an RPG if you have health and suit power to spare. Look for two broken windows side by side. Aim for the window on the left.
    7. Head down the street to your right. Note that there is a sniper in a broken window at the end of this street.
    8. TIP: There is a deli just around the corner on the right. Smash the window and duck inside.
    9. Go to the end of this street. Try to take out the sniper if you can.
    10. Go through the door. There are Headcrabs, Screaming Zombies and Zombies inside.
    11. Move down the ramp and into the water. Have your Shotgun ready.
    12. Find the wounded man on the platform. There are some ammo crates nearby.
    13. Fend off the Zombies.
    14. Leave through the other exit. This leads upstairs.
    15. Wait for the sniper to kill the Zombies. Try and get the sniper with grenades.
    16. Go to the other end of the room. You will find Barney.
    17. Turn around. Go through the doorway next to the fire. This will take you to the roof. There are two more snipers to be neutralized. Use grenades to take them out.
    18. TIP: There is a grenade crate on the lower level.
    19. Follow Barney down to the street when the snipers are neutralized.
    20. Go through the gate. There is a doorway on the right. Head through it.
    21. TIP: Watch out for Black Headcrabs.
    22. Follow the tunnel.
    23. Go through the square. There are Overwatch and an Auto Gun at the top of the stairs.
    24. TIP: Use the red barrels nearby to clear them.
    25. Resupply on the bottom floor.
    26. Go up the stairs.
    27. Crouch as you go through the doors. Stay away from the windows.
    28. Head downstairs and into the square. Look to the right. There is an awning down the street. Run to it. Regroup here.
    29. Leave the awning. Run to the fence ahead. Take a right. Run to the building at the end.
    30. Go through the door. Kill the soldiers inside with a grenade or two. Resupply inside.
    31. Open the other door.
    32. Run across the square to the bunker.
    33. Leave the bunker through the opposite door.
    34. Run straight across to the next door. Free the prisoners inside by shooting the lock off the door.
    35. Resupply. Leave through the opposite door.
    36. Head straight up to the large building's steps.
    37. Go around to the far side. Use the Gravity Gun to pull the plug on the barrier. Head inside.
    38. Open the double doors to your left. Go through into the next hall.
    39. TIP: Resupply at the room to your right. Be sure to stock up on grenades. You're about to need them.
    40. Move down the hall. Note the blue beams. These activate the Security Turret in the floor.
    41. Activate the turret by throwing a piece of junk into the beams. Drop a grenade in to destroy the turret.
    42. Go through the door into the main foyer. Go across the foyer to the open doorway on the right.
    43. NOTE: There are two Security Turrets beyond the doorway. One is straight through the doorway, the other is to the right. Be ready with grenades.
    44. Fight your way to the back of the room. There is a staircase on the left wall. Go up.
    45. Head straight across into the next room. Grab the supplies while Barney releases the prisoners.
    46. Break the blue beam, then run back to the doorway. Use the wall as cover while you grenade the Security Turrets.
    47. Go into the room with the generator. Use the Gravity Gun to blast the power charge out.
    48. TIP: Grab the supplies. There are also recharge stations on the metal barrier.
    49. Leave the room the way you came in. Go left and down the hall. Take a right and go over the bridge.
    50. Go around the room with the broken walls. You will a find a door. Go inside. You will get locked in.
    51. Place a Hopper at each door. Use the metal barricades against the wall as cover.
    52. TIP: Stand at the hole in the wall with the Shotgun. Blast the Combine troops that come by.
    53. Get ready to repel an assault.
    54. Repel the Combine troops.
    55. Resupply.
    56. Leave through the door you did not come in.
    57. Break the blue beams when you are ready. Note that there are two Security Turrets.
    58. Go through the door on your left after you destroy the turrets.
    59. Disable the generator.
    60. Go back through the room with the holes.
    61. Continue past the entrance to the bridge. Go through the main foyer. Continue straight down the hall.
    62. Stop when you see a Hopper to your right. Grab it and drop it.
    63. Go into the room. The objective here is to get to the other end of the room without breaking any of the lasers.
    64. Go straight ahead. Jump carefully up to the bulkhead. Move to your left.
    65. Jump across to the bulkhead set against the wall.
    66. Jump over the set of three lasers.
    67. Climb up onto the circular bulkhead.
    68. Go around and face the wall. Jump onto the pipe.
    69. Climb up onto the shelf.
    70. Get rid of the Hoppers.
    71. Jump over to the next shelf (the one not attached to the wall.)
    72. TIP: There is a short bulkhead nearby. Use this to get back to the circular station if you fall.
    73. Jump across to the bulkhead covered in pipes.
    74. Follow the large pipe to the next bulkhead.
    75. Jump over the last bulkhead. Flip the red switch at the end. Refill any life you lost.
    76. Leave through the door nearby.
    77. Head down the hall. Take the door on the right.
    78. Disable the last generator.
    79. Go down to the lower foyer. Combine troops will be coming in.
    80. TIP: Use a Hopper to blast them all.
    81. Head down the hallway they just came through. Resupply here. There are crates on the floor and recharge stations on the wall by the communications console.
    82. NOTE: Watch out for the Hoppers.
    83. Continue into the next hallway.
    84. Go through the door Barney opens. It's marked with a green "Exit" sign.
    85. Grab the RPG Launcher.
    86. Climb the stairs. There will be an Auto Gun and two Overwatch troops further up.
    87. Go through the door at the end. You will emerge onto the roof. Clear the Combine troops out. The Magnum, Shotgun and Pulse Rifle will work best.
    88. Destroy the Gunship that shows up.
    89. Look for the metal barricade. Wait there for Combine troops to come through. Kill the troops and go through the barricade.
    90. Go to the far end. Look for a red switch next to a gate. Hit the switch. This will extend the bridge and raise the gate. Get your Shotgun ready.
    91. Run across the bridge. Use the Shotgun to waste the Combine troops.
    92. NOTE: There will be Combine Elites inside.
    93. Drop down the stairs. Follow them all the way to the bottom.
    94. Move out into the square. The resistance will be under assault from Striders.
    95. Jump down into the first fire pit. You should see a tunnel. Go through that.
    96. Look for the embankment leading out of this pit. Climb up the street.
    97. Take a left into the supply station. There are Medkits and rockets in here.
    98. Go across to the central bunker. There are more Medkits and rockets here.
    99. Leave the bunker. Take a right through the walls. Head for the awning straight ahead.
    100. TIP: There is an RPG crate under the awning. Stick by this and use the RPGs to destroy the Striders.
    101. Run down the street. There will be a few Combine soldiers at the far end. Take them out with the Magnum or the Crossbow.
    102. TIP: Make sure you're full on rockets before you leave.
    103. Look for a set of stairs leading down.
    104. Go down and resupply.
    105. Follow the tunnels. Go through the door. Start heading down the street. A Strider will burst through the wall behind you. Use your rockets to destroy it.
    106. TIP: Use the garbage dumpsters as cover.
    107. Continue down the street.
    108. Take a left into the broken building. Kill the soldiers inside.
    109. TIP: Use the red barrels. They all come through a small hole. This makes the perfect choke point.
    110. Go up the stairs. Clear this level. Look for a door with a caved-in roof.
    111. Go up the ramp to the third level. Clear it off.
    112. Look for a cement beam leading up.
    113. Follow the cement beams around to the stairwell.
    114. Descend the stairs.
    115. Bust the wood beams in the doorway.
    116. TIP: Avoid the Striders. You will not have enough rockets to destroy them unless you are cheating.
    117. Run straight across to the pit. Drop down.
    118. Clear the lower level with the Shotgun.
    119. Grab the supplies.
    120. Go back up the other side.
    121. Kill the Combine Elites in the room across the street.
    122. Jump over the rubble. Kill the Overwatch on the other side.
    123. Regroup and resupply in the Cafe Baltic.
    124. Leave the cafe and head to the right. A Strider will burst from the rubble.
    125. Run back into the cafe to avoid it. Let it pass before you go back into the street.
    126. Drop down into the pit the Strider emerged from. You will enter a garage.
    127. Proceed through the garage. The floor will collapse. Look for the ramp and get out quickly. Kill the Overwatch in the garage.
    128. Exit through the embankment on the far side.
    129. Follow the walls through the ruins. Move quickly; you will be under assault from several directions at once.
    130. Go into the dark room. There is a staircase at the other end. Follow it up.
    131. Look for the break in the wall on the far side.
    132. NOTE: There will be pieces of rebar bent down. This indicates the break. Go through it.
    133. Drop down into the pit. Look for the lit doorway. Resupply inside.
    134. Move up the embankment outside.
    135. Fight your way to the room with the blue doors at the other end.
    136. Resupply and regroup here.
    137. TIP: There are three recharge stations here. Do not leave without full health and power.
    138. Proceed up the stairs.
    139. Take a left at the top of the stairs. Look for the RPG crate against a broken wall. Use this to destroy the Striders.
    140. Look for the man standing out on a broken platform. He will tell you to "head for the horse."
    141. Face the man. Look to your right. You should see a statue of a horse on top of a large green pillar.
    142. Look down. There will be a set of steel beams that lead you to a break in the wall.
    143. Follow the beams. Drop down on the other side of the wall. Do not jump down; just drop.
    144. Help the resistance clear the street.
    145. Follow Dog and Barney to the wall.
    146. Drop down the hole Dog opens up for you.

  • Our Benefactors

    1. Proceed down the tunnel.
    2. Look to your left at the end of the tunnel. There are a series of rock ledges. Proceed down them slowly and carefully.
    3. Jump across to the slope. Crouch to slow your descent.
    4. Go across to the next ledge. Look for the pipe sticking out.
    5. Look out where the pipe is pointing. You should see some large pistons moving up and down on the hull of the Citadel. Jump to the nearest one. Jump to the small triangle-shaped ledge on the right. This is the access point.
    6. Go inside. Take an immediate left up a ramp.
    7. Proceed straight through the hall until you reach another ramp. Go up and drop down on the other side.
    8. Take a right and go down the long tunnel.
    9. Turn left at the end. Follow the dark floor tiles around the outside of the scaffold.
    10. Go straight. You should see a line of prisoner capsules moving along tracks. Drop down here.
    11. Follow the ledge to the end. Look to your left. You will see two lines of prisoner capsules moving over a bridge.
    12. Run across the bridge. Turn around. Wait for a capsule to stop on the bridge. Move up to it and press E to enter it.
    13. TIP: Make sure you get into the capsule on the far track. If you board a capsule on the closer track, you will be incinerated.
    14. Ride the rails and enjoy the dystopian view.
    15. Watch the Confiscation Field destroy your precious weapons.
    16. Grab the Enhanced Gravity Gun.
    17. Proceed down the hall. Vaporize any enemies you see.
    18. Follow the tunnel.
    19. TIP: Stop and use the recharge station. Note that it will push your suit power to 200. Use these whenever you see them.
    20. Jump over the ledge at the far end. This will place you near a large power conduit.
    21. Go around to the other end. Head up the stairs.
    22. Turn around. There will be two enemy troops and a power conduit next to them. Pull the power sphere out to disable the barrier.
    23. Kill the soldiers. Look to your right.
    24. Follow the corridor. You will wind up in another circular room.
    25. Go around to the far side of the gap in the center of the room. Flip the red switch to call the elevator.
    26. Get on the elevator and flip the switch.
    27. Ride it up.
    28. TIP: You will be attacked on the way up. Note that there are several power conduits. Grab the energy spheres and shoot them at attacking enemies. Do not hold on to the energy spheres for too long. They will explode after a few seconds.
    29. Pull the energy sphere from the generator at the top level. This lowers the barrier around the elevator.
    30. Follow this tunnel. You will come to a very large hangar. There will be a bunch of troops and a Strider at the far end.
    31. Use the prisoner capsules as cover.
    32. NOTE: There is a power conduit to the right of the bridge. Grab the energy spheres and shoot them at the Strider.
    33. Go past the Strider. Pull the three spheres from the generator to disable it.
    34. Drop down to the lower level.
    35. Recharge at the end of the hall.
    36. Follow the tunnel to another bridge.
    37. Get into a prisoner capsule. Time to ride the rails again.

  • Dark Energy

    1. Follow Alyx.
    2. Grab the Enhanced Gravity Gun. Refill at the recharge station.
    3. Get into the elevator when Alyx says to.
    4. Take a left out of the elevator. Go to the core. Look to your right. There will be a large pillar with metal bars on the side.
    5. Go through and behind the pillar once the bars recede.
    6. Proceed up the ramp.
    7. Look for the power generators. Pull the energy spheres from them. Use them to kill the incoming Combine troops.
    8. Empty all three generators. Continue past them. Jump on top of the piston. Ride it up to the next level.
    9. Go straight, past the piston on your right.
    10. Follow the walkway to the wall. Look to the left. There will be a small path that leads to an inner piston.
    11. Get on the inner piston. Ride it up to the next level.
    12. Get off when the piston stops. There will be a recharge station in front of you. Kill any nearby troops and use it.
    13. Follow the path around to the left. You will see another set of pistons on the inside.
    14. Get onto the nearest piston. Ride it up.
    15. Get off on the top platform. Kill the soldiers.
    16. Head to the left. Get onto the large outer piston. Ride it up.
    17. Get off on the platform to your left.
    18. NOTE: There are two energy conduits. The portal device will sprout metal plates as you reach the top level. Shoot the energy spheres at them to destroy them. Also note that you will need to choose one side or the other. You cannot hit the portal components from the center.
    19. TIP: Two Gunships will appear to stop you. Shoot energy spheres at them to destroy them. Use the pillars as cover.
    20. Keep shooting energy spheres at the plates on Breen's portal until it blows.
    21. Congratulations, you have completed Half-Life 2!

 


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