Bring up the console and enter one of the following codes to activate the corresponding cheat function:
god - God mode.
addammo ## - Add ammo (1-99).
addarmor ## - Add armor (1-99).
addhealth ## - Add health (1-99).
supergod - Invisibility.
Before You start and to Enable the Cheat Console, You'll have to chage a certain file. Please make a backup copy before You begin. Now, go to Public/Public Documents/Precursors/INI/ folder and open the ENGINESETTINGS.INI with Notepad. Change Enabled=0 to Enabled=1 and save it.