: Protects against mutants like Nosalises and Librarians that can otherwise kill you in seconds on higher difficulties.
Prevents your mask from cracking and ensures your oxygen filter never runs out. Unlimited Ammo: metro 2033 trainer 1001
, this feature provides both infinite firepower and infinite wealth for upgrades. Unbreakable Gas Mask : Protects against mutants like Nosalises and Librarians