PlayStation 3 Action8 out of 59
Calm Under Pressure
Defeat the Brawler in the Post Office in under 2 minutes
Xbox 360 Action62 out of 82
Time to Re-up!
Achieve level 100 and choose to re-up for another tour of duty.
Xbox 360 Action26 out of 50
The Crossroads of Tragedy
Fight 100 matches over Xbox LIVE.
Xbox 360 Action6 out of 67
Use 100 batteries.
Xbox 360 Action5 out of 50
Fill your camera's memory.
Xbox 360 Action3 out of 12
Unlock any locked loadout or costume item.
Xbox 360 Action24 out of 47
The Best There Is
Beat Arcade mode on the hardest difficulty.
Xbox 360 Driving16 out of 58
Complete the second year of Season Play.
Xbox 36013 out of 75
Join the College of Winterhold
Xbox 360 Action37 out of 70
Stop all assaults in Arkham City
Xbox 360 Puzzle7 out of 96
Start the Dizzy Hurry-up mode and make the chupacabra dizzy on Paranormal! (Single player only.)
Xbox 360 Action31 out of 76
Kill 5 enemies with a single grenade in Single Player or Special Ops.
Xbox 360 Action6 out of 63
Obtain your first enemy Dog Tag
Xbox 360 Action67 out of 79
Skeletons in your Closet
Complete waves 1 through 10 on all Flashback Map Pack maps in Horde (any difficulty)