There are a total of twenty playable multi-player maps in Call of Duty 4 with the addition of the Variety Map Pack, released as a $10 downloadadable add-on on April 10, 2008 for the PlayStation 3 and Xbox 360. The variety map pack content for the PC version was included with the free patch (1.6) on June 4, 2008.http://www.joystiq.com/2008/04/01/call-of-duty-4-map-pack-delayed-a-week-now-hits-xbl-april-10/ On November 10th, 2009, Call of Duty 4 was ported to the Wii platform as well.http://news.prnewswire.com/DisplayReleaseContent.aspx?ACCT=104&STORY=/www/story/08-05-2009/0005072278&EDATE=

1. Ambush: Large desert town with a small sewer. The road in the central open area has a few blown-up tanks.
2. Backlot: Medium-sized desert town under construction with two mounted machine guns.
3. Bloc: Large Russian apartment bloc area surrounding a courtyard.
4. Bog: Open desert bog with a few buildings.
5. Countdown: Open missile launch pad area with a great deal of cover opportunities.
6. Crash: Medium-sized desert town square with a crashed helicopter.
7. Crossfire: Small desert town with an L-shaped road and buildings each side of the road.
8. District: Large desert town with small streets and a market.
9. Downpour: Large rainy Russian farm area with two mounted machine guns and a trench.
10. Overgrown: Large overgrown rural Russian area with a trench in the center and one mounted machine gun.
11. Pipeline: Russian train yard with storehouse buildings, narrow underground maintenance corridors, and a mounted machine gun.
12. Shipment: Small Russian shipyard with containers. Very little cover.
13. Showdown: Small desert arena containing a town market and surrounding galleries.
14. Strike: Large desert town.
15. Vacant: Deserted Russian office building.
16. Wet Work: Cargo ship with a maze of containers on the deck, platform in the center, and a 'bridge' on each endhttp://features.teamxbox.com/xbox/2081/Call-of-Duty-4-Multiplayer-Map-Walkthrough/p1/

1. Killhouse: Small contained area with wooden buildings and open roofs.
2. Creek: Outdoor mountain with winding paths, trees, sandbags, with a village of shacks down below.http://xboxlive.ign.com/articles/859/859936p2.html
3. Broadcast: Compiled of interior of offices and exterior of abandoned cars and stairs that lead to roof of building.
4. Chinatown: Based off Call of Duty 2's Carentan. Filled with shops, statues, and buildings.http://xboxlive.ign.com/articles/859/859936p1.html

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