Activating this trainer

If not state otherwise below, press F1 at main menu.
Listen for 'Trainer Activated'.
Press desired hotkey. All hotkeys can be changed on the trainer.

Trainer Options

# Player 
     NumPad1: God Mode

# Weapons 
     NumPad2: Ammo / Items Dont Decrease
     NumPad3: No Reload

# Misc 
     NumPad4: Disable Zombie Spawning

Notes

Disable Zombie Spawning:
While active zombies dont spawn. Does not remove already spawned zombies. You should only use this option if you already have played / completed the mission. It may block game progress.