To promote the new MI: 4 movie, Xbox Live and Gears of War 3 are offering you a mission, if you choose to accept it. Beat Gears of War 3 on Insane by December 25 and be rewarded with five extra weapon skins: a “Ghost Protocol” Lancer, Hammerburst, Retro Lancer, Gnasher Shotgun, and Sawed-off Shotgun.
This free DLC will be part of the Ghost Protocol experience when it launches on XBL tomorrow. There is also a giveaway. Enter to win custom slim Xbox 360, Kinect, 50″ HDTV, 5.1 home theater system, and the Mission: Impossible series on DVD just by watching the trailer for Mission Impossible: Ghost Protocol when it appears on the dashboard.
You can get the weapons whether you beat the game on Insane in multi or single player. The skins will also be awarded retroactively to those who have beaten the game on Insane already.