CQC bolters in particular are unfun to fight against and only add tons of cancer to the point that players rather push MAXes than bolters. Insanely strong at any range, and IMO needs a nerf in close range effectiveness. Update after update they kept getting indirectly buffed for no reason, getting tons of weapons that they didn't need at all, and it has all culminated in a class that is invisible and kills you in half a second or less at any range.
Topic has been done to death, but with the class more broken than ever and with no fix in sight, I feel like it's necessary to beat the dead horse one more time.