Different Factions - Different Weapons
There are two playable factions in Halo Wars: the United Nations Space Command (UNSC) and the Covenant. There is also a Flood faction in the game, but that faction is not playable.
Just like in previous Halo games, each of the factions has their own strengths and weaknesses and their own set of weapons specialized to their fighting style and soldire type. Members of the UNSC known as SPARTANs begin the game with dual-wielded M7 Caseless Submachine Guns. These guns were also seen in Halo 2 and Halo 3 and are the standard weapon of choice for the UNSC. Hellbringers start the game with flamethrowers, while the UNSC Marines start with assault rifles.
Members of the Covenant faction known as Unggoy, start with plasma rifles, but also have the ability to throw grenades, while Mgalekgolo carry assault cannons. The overall artillery for the Covenant is dominated by plasma and energy weapons.
In both factions, better weapons can be equipped by upgrading the infantry units.Halopedia: Halo Wars Gameplay Units
Halo Wars Weapons
Each gameplay unit in Halo Wars has it's own unique set of weapons. Below is the list of weapons in the game, broken down by the unit who uses them.
United Nations Space Command
M6D Personal Defense Weapon System (Magnum)
M19 SSM Rocket Launcher
M90 Close Assault Weapon System (Shotgun)
MA5B Individual Combat Weapon System (Assault Rifle)
SRS99C-S2 AM Sniper Rifle
NA4 Flamethrower
AIE-486H Heavy Machine Gun
Weapon/Anti-Vehicle Model 6 Grindell/Galilean Nonlinear Rifle (Spartan Laser)
M7/Caseless Submachine Gun (SMG)
Fragmentation Grenade- Secondary Marine weapon, upgraded to rocket launchers
Covenant
Type-1 Energy Weapon/Sword (Energy Sword)
Type-2 Energy Weapon/Hammer (Gravity Hammer), only ever held by the Brute Chieftain.
Type-25 Directed Energy Pistol (Plasma Pistol)
Type-25 Directed Energy Rifle (Plasma Rifle)
Type-25 Grenade Launcher (Brute Shot)
Type-33 Guided Munitions Launcher (Needler), received by upgrading Grunts.
Type-33 Light Anti-Armor Weapon (Fuel Rod Gun)
Type-50 Sniper Rifle System (Beam Rifle), received by upgrading Jackals.
Type-51 Carbine (Covenant Carbine)