Extinction: Zombie Invasion

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- Added Russian Language Support
- New Ground War Mode Map: Metropolis
- New Weapon: M3 GNU Assault Grenade Launcher, VAL-SP DMR
- New Limited Weapon: Super Compact Shotgun
- New DLC Weapon: Yakov Model 16 LMG
- Added Safe House System
- Added Screen Space Cavity Curvature
- Added MSAA Control
- Some optimization works on city levels