To activate the following cheats, you will need to edit a game file; create a back of the file before proceeding. Use a text editor to edit the "config.cfg" file in the "players
" directory in the game folder. Add the following line to the end of the file:

seta thereisacow "1337"

You can now further modify the file by binding any of the following cheat codes to an unused key. For example, adding the following line will bind the "God mode" cheat to the "U" key:

bind u "god"

Save the "config.cfg" file, then Right Click it, select "Properties", and set it to "Read Only". Begin the game, then start a new level by selecting "Mission Selection" or starting a new game. To activate the following cheats, type the corresponding codes during gameplay:

CHEAT FUNCTION - CHEAT CODE
God mode - god
Extra ammunition - give ammo
Ignored by enemies - notarget
No clipping mode - noclip