Scott Mitchell Invincibility:
Press Start during game play, then hold LT + RT + Back and slowly press Y, Y, X, RB, X, LB.
Team Invincibility:
Press Start during game play, then hold LT + RT + Back and slowly press X, X, Y, RB, Y, LB.
100% health:
Press Start during game play, then hold LT + RT + Back and slowly press LB, LB, RB, X, RB, Y.
Unlimited Ammo:
Press Start during game play, then hold LT + RT + Back and slowly press RB, RB, LB, X, LB, Y.
Level Select:
Press Start during gameplay, then hold LT + RT + Back and slowly press Y, RB, Y, RB, X.
Warfighter Difficulty:
Beat the game to unlock the Warfighter difficulty level.