Objectives (13)

This guide covers the objectives for Call of Duty, detailing missions, campaigns, and key moments in the game. Learn how to complete each stage of the game.

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The game is based on the Return to Castle Wolfenstein game engine. In September 2004, it was accompanied in by an expansion pack named Call of Duty: United Offensive, which was produced by Activision, and developed by Gray Matter Interactive Studios, with contributions from Pi Studios. Call of Duty is similar in theme and gameplay to Medal of Honor, as it is made out of single-player campaigns and missions. However, unlike Medal of Honor, the war is seen not just from the viewpoint of an American soldier, but also from the viewpoint of British and Soviet soldiers, and is not as reliant on stealth as Medal of Honor. Also, unlike many other war games, Call of Duty introduced more computer-controlled allies who vary in quantity, providing the player with support throughout the games offering a more realistic WWII experience. Call of Duty also featured "shellshock" (not to be confused with the psychological condition of the same name): when there is an explosion near the player, he momentarily experiences simulated tinnitus, appropriate sound "muffling" effects, blurred vision, and the action moves slower.