Xbox 360 Action12 out of 63
Obtain your first enemy Dog Tag
Xbox 360 Action31 out of 64
Rescue the third hostage from Riddler
Xbox 360 Action31 out of 82
Welcome to Arcade Mode
Complete 5 Arcade Campaign chapters in co-op (any difficulty).
Xbox 360 Action25 out of 59
Play each class in Multiplayer.
Xbox 360 Action43 out of 59
Fully upgrade one of your weapons.
Xbox 360 Action37 out of 43
Win Founders' Tower as both factions in Campaign Mode
Xbox 360 Action59 out of 72
Just Because I Can
Finish first on the scoreboard on any Vietnam level
Xbox 360 Driving33 out of 60
Join the Party
Win a game in each of the multiplayer party modes (Pro Tour or Jam Session)
Xbox 360 Action48 out of 50
Break 11 test chamber monitors
Xbox 360 Action36 out of 54
Complete any 1 map in "Last Stand" game mode in CO-OP
Xbox 360 Action23 out of 41
Continue playing to unlock this secret achievement.
Xbox 360 Driving39 out of 54
Sell a car for more than you paid for it
Xbox 360 Driving21 out of 60
8th Wonder of the World
Complete a lap of the Michelin Test Track 'figure of 8' while sliding.
Xbox 360 Action28 out of 50
Complete 3 Xbox LIVE matches