I find crucible exactly the same. I did the Crucible quests for my moments of triumph and was dreading rumble. I won both games? I then do control trying to get 6+ auto riffle kills and didn't even get 6 kills per game over the 4 as we lost all 4 and I needed 4 points? Next up us clash and i clean up. That's what happens when your a casual average Joe I guess, or maybe there is some thing more sinister at work?