Cumulative gameplay patch:- Fixed window FOV calculations to fully match engine, this changes appearance of viewports- Lowered eye position for first-person mode- Increased additive blend intensity for corpse fade- Fixed walk animation to be more more smooth, sharp and clean. Removed "force walk" feature (which forces player movement according to animation even if player not holding move buttons).- Renamed all material definitions to incldue mtr_ prefis. Example: surfaceparm stone become surfaceparm mtr_stone.- Fixed first-person mode movement- Minor cleanups of code