Oh I like this one! The enemy variety gives me that Quake vibe especially with the grenade launcher, and I like how everything is an actual bullet, no hitscan. Of course that does make the shotguns feel a little slow? Same goes for pistols. I feel like I miss shots because the shotgun bullet speed is slower than expected.
One more consistent problem I found was that the game never grabbed my cursor, so it was always there when playing. Which was odd.
I hope to see a finished game in a halloween soon :P