


The game follows American and British paratroopers and the Red Army. An expansion pack, Call of Duty: United Offensive, was developed by Gray Matter Interactive with contributions from Pi Studios and produced by Activision. The game simulates the infantry and combined arms warfare of World War II. The game was developed by Infinity Ward and published by Activision.

Call of Duty is a video game based on id Tech 3, and was released on October 29, 2003.
