There's not a ton to write home about here. The graphics are pretty basic, and the land around is pretty baron, it certainly doesn't give me any Doom-ish vibes. It looks like you had more ambition than what you actually put in. The gameplay feels more like a fetch quest in an MMO, go here, get this, return and repeat.
I get that AS2 is hard to get into if you're trying to make something quickly, but it must have been possible to make footstep sounds getting closer to you, or a minimap, something more obvious than a red bar coming along to tell you something is behind you. Also when you kill something, it's just a simple fade out, there's no real animation there, it's always the same one each kill.
1.5/5
<3