The single player is modeled after the Normandy breakout, where the British, Canadian, Polish, American and French Resistance forces pushed into the village of Chambois, France, also known as the Falaise Gap. Unlike most other games in the Call of Duty series, the events in Call of Duty 3 are based on a single combined campaign, with the player being switched between the four nations and their respective characters for each leg of the story. There are 14 campaign missions.
In addition to the single-player campaign, Call of Duty 3 features a wide range of multiplayer modes for players to participate in - each team allowing up to 24 on the PS3 and the Xbox 360, and 16 for the PS2 and Xbox in a single match. This is only in the online mode. All team game modes feature the soldiers of the Allied nations versus those of the Axis. Multiplayer features are absent from the Wii edition. This was the first Call of Duty to allow the player to drive military vehicles like the German Motorcycle with Sidecar, and the Panzer IV Tank.