In order to activate cheat codes you have to find out where G5 Software's Red Shark (Hell Strike) is installed on your PC. Typically it is your “Program FilesBukaRed Shark (Hell Strike)“ folder.
Locate GameSettings.script file and the line:
bool ConsoleEnabled = false;
Replace false with true, save the file and run the game. Now you can invoke the game console by pressing F3 at any time. To turn the console off, use Escape. In the console, you can enter the following cheat codes:
immortal = true - makes your helicopter invulnerable
unlimited_ammo = true - makes your heli's ammo supply infinite
god_mode = true - turns on “God mode“
enabled_missions = true - makes all missions in the game available to play
zone_texture = true - looks funny
To turn any of these cheat modes off simply type the same line but with “= false”.