It was fun. Glad to see that the game is progressing nicely. Visual quality has gone up significantly, gameplay is smooth. Level design varies, first level is great, almost flawless, second one takes a bit of a runaround but if somebody wants to finish it, they will. Found a number of things that might need a fix:
Bugs:
Tutorial - Shoot with Pistol / Machine gun work opposite to labels
Sometimes enemies simply stare at you
Occasional stutter
Spawns mid floor
Shotgun + powerup = mid boggling effect
Open doors on a car looking goofy
There should be a mechanism of keeping it crouched when you're in tight space, once you press C and crawl into it.
How should player know that tram is powered by blue key. Only guessed it because it's blue
Tram ride shootout is cool idea but enemies don't react in any way
Squat displaces you when you're in tram