the stat changes i would likely suggest is that:
Right the minigun is nerfed to 3dmg and a moving speed penalty while continuously firing?
i would suggest that if you stay with the 3 dmg of the minigun you would remove the moving speed penalty
-OR-
i would suggest if youre gonna buff it to 4 damage, keep the speed penalty
in that way the minigun is not considered 'useless' to people with all the nerfs but to make it more 'balanced'
(note the first sentence seems like there's no hope for minigun, just saying)
