Gears of War 3

Gears of War 3 will feature for the first time a four-player co-op mode[5] and the introduction of three playable female characters: Samantha Byrne, Anya Stroud, and Bernadette Mataki (a character from the novels by Karen Traviss). Another new playable character is Jace Stratton, a battle-hardened soldier who appears in the comic series and is mentioned in the second game.

You can see the release date below: