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: Unlimited Camera Energy
NumPad4: Unlimited Batteries
NumPad5: Unlimited Badges
Notes:
Infinite Health: While active you have infinite health. If you activate this while your screen is covered in blood the blood won't go away you will need to use a bandage.
Unlimited Batteries / Badges: While active open the 'inventory' and you will have unlimited batteries / badges.