Various cheats

Unlock Cheats:
     At the title screen press Circle, Circle, Circle, Circle, Circle,
Square, Square, Square, Square.

     Now go into the special features menu and you will have access to
the  following  cheats:  All  Fugitives,  All  Weapons, Invincibility,
Infinite Ammo.

Unlock Bin Laden Look-alike Enemies: 
     Play  the Afghanistan-Pakistan Border mission. Pause the game and
press  Circle,  Circle,  Circle,  Square,  Square, Square. Now you may
encounter enemies who resemble Bin Laden.