M468 assault rifle:
     Hold  R1  and  press  Up, Triangle, Down, X, Left, Square, Right,
Circle, Left, Left, Right, Square at the title screen.

MTAR-21 assault rifle:
     Hold  R1  and  press  Down, Down, Up, Up, Square, Circle, Square,
Circle, Triangle, Up, Up, Triangle at the title screen.

Super ragdoll effects:
     Press  Start  to  pause game play during an offline single player
game,  then  hold  R1  and press X, X, Circle, Circle, Square, Square,
Triangle, Triangle, X, Circle, Square, Triangle.

Third person view:
     Press  Start  to  pause game play during an offline single player
game,  then  hold R1 and press Square, Circle, Square, Circle, L3, L3,
Triangle, X, Triangle, X, R3, R3.

Big heads:
     Press  Start  to  pause game play during an offline single player
game, the hold R1 and press Circle, Square, X, Triangle, L3, Triangle,
X, Square, Circle, R3

One hit kills:
     Press  Start  to  pause game play during an offline single player
game, then hold R1 and press L3, R3, L3, R3, X, Circle, L3, R3, L3, R3
Square, Triangle.

Laser bullets:
     Host  an  online game. Press Start during game play, then hold L2
and press L3, L3, X, R3, R3, Circle, L3, L3, Square, R3, R3, Triangle.
Bullets  from Alpha team/Rainbow will be blue lasers, while those from
Bravo Team/terrorists will be red lasers.

Unlock Comcast Even Map:
     Go  to  the  Main Menu. Select Extras. Select Comcast Gift. Enter
'Comcast Faster' to unlock the multi-player map Comcast Event.