the demons don't seem to handle the gravity mechanic very well. sometimes they fly across the map, get stuck, move too fast, "fall" sideways, it's a mess.
this added to the fact that enemy spawns are still not marked adds to the chaos, with things either spawning on top of you or falling sideways on top of you, ganking on you instantly from directions you are unable to expect.
the guns are a bit weird, they are pretty big and maybe pointing a bit upwards, which doesn't align very well with the aim