Activating this trainer:
Press F1 at main menu.
Listen for 'Trainer Activated'.
Press desired hotkey. All hotkeys can be changed on the trainer.
Trainer Options:
NumPad1: Infinite Health
NumPad2: Infinite Stamina
NumPad3: Refill Medics
NumPad4: Refill Food
NumPad5: Refill Battery
NumPad6: Super Running Speed
NumPad7: No Flashlight Flicker
Notes:
Infinite Stamina: While active you can run endless.