If you prefer not to use a trainer, you can use built-in codes or Official IGI 2 Cheats on IGN :
Allows players to defeat any enemy with a single shot. 9 trainer igi 2
Prevents guards from triggering base-wide alerts, which is critical since alarms in IGI 2 often result in overwhelming reinforcements. If you prefer not to use a trainer,
While specific keys can vary based on the version, a standard IGI 2 9-Trainer typically includes the following functions: 9 trainer igi 2
Become invincible against bullets and explosions.
: Ascend the ladder to neutralize the roof sniper and take their rifle to clear distant threats. Objective Execution