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:

Numpad 8: Infinite Battery

Options:

Numpad 1: Ignored By AI

Numpad 2: Infinite Bullets

Numpad 3: Infinite Grenades

Numpad 4: Invincible

Numpad 5: Infinite Energy

Numpad 6: Infinite Stamina

Numpad 7: High Lockdown Timer

Numpad 8: Infinite Battery

Notes:

Numpad 1: Ignored By AI - toggle on for the effect.

Numpad 2: Infinite Bullets - toggle on for the effect.

Numpad 3: Infinite Grenades - toggle on for the effect.

Numpad 4: Invincible - toggle on for the effect.

Numpad 5: Infinite Energy - toggle on for the effect.

Numpad 6: Infinite Stamina - toggle on for the effect.

Numpad 7: High Lockdown Timer - toggle on for the effect.

Numpad 8: Infinite Battery - toggle on for the effect.