modern warfare 3

On May 13, 2011, four teaser trailers were released on the official Call of Duty YouTube page, separately titled "America", "England", "France" and "Germany", indicating the various locales of the game. The same day, video game website Kotaku leaked various tidbits of information about the game, confirming that it would be a direct sequel to Call of Duty: Modern Warfare 2, as well details regarding weapons, levels and modes found in the game.^[5]
On May 23, 2011, Activision released the first gameplay trailer for Call of Duty: Modern Warfare 3 on YouTube ahead of its official premiere during the NBA Western Conference Finals.^[6]
On May 31, 2011, Activision announced Call of Duty Elite, a brand new social service for the Call of Duty community to track and compare statistics, create videos and access premium content. The service will be fully integrated into Call of Duty: Modern Warfare 3, and will launch to coincide with the game's release.^[7]

Characters

The game will see the return of Task Force 141 Captain "Soap" MacTavish, Ex-SAS Captain Price and Russian informant "Nikolai" who are on the run after killing the rogue U.S. Army Ranger Lieutenant General Shepard. Russian Ultra-nationalist Vladimir Makarov will also return as the game's primary antagonist.^[8]

Plot

The game will immediately follow the events of Call of Duty: Modern Warfare 2, where Russia continues its invasion of the United States of America, and has also expanded its offensive to Europe, including England, France and Germany.<sup>[8]

 This information is form this website below -</sup> 

http://en.wikipedia.org/wiki/Call_of_Duty:_Modern_Warfare_3

modern warfare 3

The game opens moments after the cliffhanger ending of Modern Warfare 2 with the U.S. struggling to stave off a surprise Russian attack.
The single-player campaign, which appears to wrap up most of the unanswered questions and character fates of the first two Modern Warfare titles, also introduces new characters who appear to be destined for future Modern Warfare games, especially two Delta Force operatives codenamed "Frost" and "Sandman". Multiplayer in the game returns with a chunky list of playable maps as well as two types of Spec Ops modes: "Survival" and "Mission".

Modern Warfare 3 Multiplayer Features Battles in Brooklyn, Clash in Mogadishu 

Packed with 15 levels set in locations around the world, from Manhattan to the catacombs of Paris, Modern Warfare 3's near-future campaign looks to be an experience that will top anything seen before in a Call of Duty.

most of this information is from this website below -

http://kotaku.com/5801226/the-modern-warfare-3-files-exclusive-first-details-on-the-biggest-game-of-2011