Surely theres nothing worse they can do to it after the last? If they have learnt their lesson they will revert alot of stuff and try balance weapons. It seems like they cant seem to get it right.
Eg. M60 was slightly overpowered but not by much upon release. Newbs cried and it got nerved to the point where you may as well be using a paintball. then in the last one, the reverted back to the original and made it even more overpowered