Yeah, I'm finding the same at the moment with 2 or 3 leaving, the rest of the game gets useless. I came back to try TDM as I like that sort of play, but overall I find myself frustrated when playing it. Although i'm stuck at 60hz at the moment, I'm finding the hit-reg really poor, and I cant help but feel that opponents are too good ... I know that sounds like sour grapes, but I feel its more than just being better or what you see on streams of good players. Its like you empty a whole clip into them, and they shoot once and your dead instantly, an octane last night seemed to be going around faster than average, and I'm convinced that some are seeing me through walls.
Anyhows, I tried it ... i love the aesthetic look and premise of the game, but its lost its way, and I dont enjoy it anymore.