Using this Trainer

Launch the trainer first, then launch the Game.
Press F1 DURING GAMEPLAY, NOT AT THE MAIN MENU!
Listen for “Activated”.
Press desired option key

Options
-Numpad 1: Invincible
-Numpad 2: No Reload
-Numpad 3: Unlimited Ammo / Grenades

Notes
You may need to Press F1 between levels to reset the trainer. This game reloads the server between levels. Press F1 at any time to reset the trainer for the new level.

Numpad 1: Invincible - your character is immune from most damage.

Numpad 2: No Reload - your clip in the gun is endless. Take care, though, because you can still run out of ammo!

Numpad 3: Unlimited Ammo / Grenades - use this option to prevent running out of ammo. You must have ammo to begin with.This works for grenades as well.

Download
Operation Thunderstorm - Trainer