Yes, the machine gun shot and behaved as expected but the ammo seemed to not deplete at all and then when I really laid on the trigger it depleted very slowly. (not a bad thing when you're knee deep in maniacal garbage creatures, just thought you should know!)
On the axe, my personal opinion is that perhaps it doesn't need much of a tweak? I like it when you have to learn what weapons work and what weapons do not work in a game. Doesn't mean that one should be broken completely but they all shouldn't be OP either. Let me know if you need any help with the game. I can't code but I can write and test. ))