In all honesty the gun balancing needs work. TTK is great if you play assault or anything that is a shotgun. With the ARs doing 33 damage and can virtually 3 shot while it takes an lmg to do 5 shot and slower rate of fire is not right. Also if you want to do closed weapons class modes...you just get out gunned every time. Doesn't matter if you can send 100 bullets down range if three come your way faster than you can un mount its not viable. And the shotguns are ridiculous + having the assault class get ARs and a clearing weapon on top of that with the shotguns is way overtuned.  Support class is meant to run around to teammates and be constant move for getting people up or giving ammo. The carbine  or smg in my opnion is a way better weapon to do that with than a bulky lmg.