Code Entry
All of these codes are entered by first typing "~" which will bring up a screen into which you can type cheats. Enter "iamtheone" to enable cheat mode. Then you can punch in the codes you wish to use during gameplay.
Fly Away
Enter "fly" into the cheat screen to enable your character to fly around the game. Use the space bar, direction buttons and your mouse to move about the game's cities and battlefields. Enter "walk" to disable fly mode.
Half Speed
Type "slomo" into the console to decrease game speed. This will allow you to make more deliberate movements and aim more accurately, although you may find the slower speed frustrating. If you want to leave slomo mode, enter "slomo 1."
Be a Hero
Enter "god" to enter "Tactical Ops: Assault on Terror's" god mode. Doing so will give you unlimited ammunition and make you invulnerable to enemy fire or environmental damage. You won't be able to earn any game bonuses while in god mode.
Sneak Around
In order to be unnoticeable to your enemies, enter "invisible 1" on the cheat screen. You'll be able to enter rooms and battlefields without anyone noticing you unless you bump into him. Disable invisible mode by entering "invisible 0."