Callof Duty is a first-person shooter video game developed by Infinity Wardand published by Activision.The game simulates the infantry andcombined arms warfare of World War II. The game is based on the QuakeIII: Team Arena engine. It was accompanied in September 2004 by anexpansion pack, Call of Duty: United Offensive, which was produced byActivision, and developed by Gray Matter Interactive, with contributionsfrom Pi Studios. The Hardened and Prestige Editions of ModernWarfare 2 will include a code to download Call of Duty for free.

Callof Duty is a first-person shooter video game developed by Infinity Wardand published by Activision.The game simulates the infantry andcombined arms warfare of World War II. The game is based on the QuakeIII: Team Arena engine. It was accompanied in September 2004 by anexpansion pack, Call of Duty: United Offensive, which was produced byActivision, and developed by Gray Matter Interactive, with contributionsfrom Pi Studios. The Hardened and Prestige Editions of ModernWarfare 2 will include a code to download Call of Duty for free.

Hear the call of duty once again with this seventh entry in this blockbuster firstperson shooter franchise. Call of Duty: Black Ops takes you deep behind enemy lines into the world of deniable operations as a member of an elite special forces unit engaging in covert warfare, classified operations, and explosive conflicts across the globe. With access to a variety of exclusive weaponry and equipment, your actions will tip the balance during the most dangerous time period mankind has ever known.

Description: FPS game with 19 new missions in the Word War 2.
The sequel to the award-winning Call of Duty?, Call of Duty 2 is powered by a proprietary new engine featuring striking new visuals, advanced A.I. technology, the most realistic squad combat and explosive action in new historic campaigns

Hear the call of duty once again with this seventh entry in the CoD franchise. Call of Duty: Black Ops, inserts players behind enemy lines during the most dangerous time period mankind has ever known. An epic single player campaign filled with heart-racing action, Call of Duty: Black Ops puts players in the boots of elite special forces units engaged in covert warfare, deniable operations, and explosive conflicts around the globe.

Hear the call of duty once again with this seventh entry in the CoD franchise. Call of Duty: Black Ops, inserts players behind enemy lines during the most dangerous time period mankind has ever known. An epic single player campaign filled with heart-racing action, Call of Duty: Black Ops puts players in the boots of elite special forces units engaged in covert warfare, deniable operations, and explosive conflicts around the globe.