Kotaku has uncovered some massive details of Modern Warfare 3, with sources claiming that the game will feature "mammoth battles that engulf a dozen cities around the world including New York, Paris and London" and the game will release November 8, 2011.
The game starts right after the cliffhanger ending of Modern Warfare 2 with US forces struggling to cope with a surprise Russian attack. The player will travel the world in the single player campaign with plenty of intermediate roles as SAS operative, tank gunner and more. Check out the rest of the details regarding the single player campaign and multiplayer modes including some leaked screenshots at Kotaku.
In-game Screenshot
Image Source Kotaku