I try to not get wrapped up in the bitching about this game, because in spite of its numerous flaws I enjoy playing it very much.
BUT
WTF at having killstreak rewards carry over from round to round in game types like HQ, sabotage, etc. I played a couple rounds yesterday and there was a sick dude in the lobby who would go like 15-2 in the first round, and then as soon as round two begins: stinger, harrier, chopper gunner, GG. It's crazyness.