Ok, gameplay much better. This frozen gun still useless, like the fire shotgun, but only because these enemies die to fast. But if comes different enemies with more health they become more use maybe. So maybe these two are not useless if cases appear. But I think this Ice gun should shoot a little faster, just a little. The last weapon feels a little too strong if I compare it to each other, but maybe only now. Later waves have maybe more enemies and different, maybe then the other makes then more sense.
I think 10-20% more sight would be still great. Or a changeable camera option? And I think you can give the corpses a little more visibility. If a wave got a little more hectic, they get invisible in background and enemies. Like a small bright light green border or nearly invisible light green background.