It is amazing how fast it runs given that it looks pretty great. The metallic effect is overdone on the doors in the tutorial, but looks great on the weapons. There is definitely something odd about the reflections in the water.

The cyborgs are no fun - no ragdoll physics or dismemberment or even gibbing, so their deaths feel about as real as Doom. But! The pistol is fantastic. The noise is loud without being annoying, and the rate of fire is great. Plus it's accurate and does reasonable damage (compared to pistols in most games).

To the guy who didn't hear sounds for a lot of stuff: I think you just have a sound problem - everything you mentioned has a sound effect. That said, the more rapid fire weapons (machinegun and Mac) are curiously quiet for me.

If the enemies and environments were a little more inventive, it could have been really great. As it is, it's interesting and technologically impressive - I'd like to see more engines as efficiently written as this.