Obviously, you're not done yet (that's what makes it a WIP, after all!), but had some CC:
Looking at the trailer in the link provided, the first thing I noticed is that the baddie doesn't react to glass being broken behind him. =^><^= I'm mainly working on learning DBP right now, so I'm not sure how one would fix that, but the scene seems pretty good otherwise. It feels like watching a game played on Super-Easy mode without him responding to something a person in RL would definitely notice. Even if he was deaf, the glass shards would probably hit him. Hmm... That makes me think it would be neat if enemies were damaged by glass shards when you broke glass near them. Kind of violent and complicated, though.
Anyway, that's all I have for ideas on that.
I really like the colors of the lighting in the center of the rooms further into the video. Interesting how it bathes the character in red light in some places.
The corpse in the tunnel is excellent! I think the atmosphere would benefit from flickering lights or it being a little darker there so the corpse is a bit more startling, but perhaps you were already planning this and just hadn't gotten to it.
Otherwise, seemed pretty good! Couldn't listen to the sounds, though, because I was at a computer without speakers. May check it out again later.
Your error is my treasure. =^--^=