Using this Trainer:
Launch the trainer first, then launch the Game and then Press F1 at the Main Menu.
Listen for "Activated".
Press desired option key
Options in Promo:
Numpad 4: Ammo
Options:
Numpad 1: Money
Numpad 2: Food
Numpad 3: Armor Parts
Numpad 4: Ammo
Numpad 5: Medicine
Numpad 6: Maximum Brothers
Notes:
Use these options at the MAP screen and nowhere else. When you press the option key, you might have to wait a few seconds to see the value update. The values used for each option can be changed using the Custom Keys functionality of the trainer.
Numpad 1: Money - press key and you have more.
Numpad 2: Food - press key and you have more.
Numpad 3: Armor Parts - press key and you have more.
Numpad 4: Ammo - press key and you have more.
Numpad 5: Medicine - press key and you have more.
Numpad 6: Maximum Brothers - press key and you have more.