That's one reason why I don't bother with online play. It has less to do with real-life tactics/skill and more to do with exploits/bugs and lag times. I used to play Aces High, the online warbird sim, and that was exactly the same...always someone using an exploit or they'd have a faster connection and they'd get to shoot first in a head-on. Fact remains the nature of humans is that if they can cheat, they will. Like communism wont work, online play will never work, for the same reason. Humans suck...
Online play sounds really good...until you try it.