Unlock Big Heads
Go to Extras then to Cheats Input and put in the code: NICKWEST
Unlock Army Version
Go to Extras then to Cheats Input and put in the code: HA2P1PY9TUR5TLE
civilians are more aggressive to the US soldiers. More aggressive terrorists.
Unlock Unlimited Ammo (For Mercenaries?) Makes the game tougher
Go to Extras then to Cheats Input and put in the code: MERCENARIES
Unlock Real Damage Mode
Go to Extras then to Cheats Input and put in the code: SWEDISHARMY