The chaos is what makes it fun. I don't find the game to be imbalanced at all since every weapon was carefully designed to not be gamebreaking.
On a side note, I have noticed several strange quirks in the online. For example, once I got into a game and it went straight from the pregame to the postgame lobby, with me having been killed 10 times even though I never actually got into the game. Another time I flew into the turret to man it and nothing happened. I continued to fly around picking up kills and when I was one short of the doghouse award, it showed me getting killed as if I was still in the turret.
Anyways, it's a very fun online experience except for the occasional aforementioned quirks and the host quitting out right before I pick up a win.