Level 5 Field Medic: Heal 25,000 HP on your teammates. Level 5 Commando: Kill 4,000 stalkers with the Bullpup, and deal 3,500,000 damage with Bullpup. Level 5 Berserker: Deal 3,500,000 damage with melee weapons. Successfully complete the indicated task to unlock the corresponding perk:
Then, type one the following codes and press to activate the corresponding cheat function: Result While playing the game, press ~ to display the console window.
