коды half-life 2

Народ правильно говорит Лучше скачай трейнер. Но есть способ интереснее в папке gamedata\config\creatures есть файл actor открываешь его тупым блокнотом и ищешь строки
[actor_immunities_gd_novice]
burn_immunity = 0.5;коэффициенты иммунитета 
strike_immunity = 0.5
shock_immunity = 0.5
wound_immunity= 0.5
radiation_immunity = 0.5
telepatic_immunity = 0.5
chemical_burn_immunity = 0.5
explosion_immunity = 0.1
fire_wound_immunity = 0.5

[actor_immunities_gd_stalker]
burn_immunity = 0.65;коэффициенты иммунитета 
strike_immunity = 0.65
shock_immunity = 0.65
wound_immunity= 0.65
radiation_immunity = 0.65
telepatic_immunity = 0.65
chemical_burn_immunity = 0.65
explosion_immunity = 0.3
fire_wound_immunity = 0.65

[actor_immunities_gd_veteran]
burn_immunity = 0.8;коэффициенты иммунитета 
strike_immunity = 0.8
shock_immunity = 0.8
wound_immunity= 0.8
radiation_immunity = 0.8
telepatic_immunity = 0.8
chemical_burn_immunity = 0.8
explosion_immunity = 0.6
fire_wound_immunity = 0.8

[actor_immunities_gd_master]
burn_immunity = 1.0;коэффициенты иммунитета 
strike_immunity = 1.0
shock_immunity = 1.0
wound_immunity= 1.0
radiation_immunity = 1.0
telepatic_immunity = 1.0
chemical_burn_immunity = 1.0
explosion_immunity = 1.0
fire_wound_immunity = 1.0
Тупо меняешь все цифры на 0.0 и ты неуязвим