Hey there!
It's a fun little game, i like it!
I have small 2 criticisms:
1. Some weapons (like the shotgun) cover the middle of the screen when shooting, try to avoid this for first person cameras!
2. Explosives seems a bit weak, i've had enemies tank rocket launchers and grenades, the area of effect seems oddly small, no appreciable knockback. I would've loved for the barrels to damage enemies when throwing them!
Overall it's quite neat! :)