Well i'm reinstalling the game again to try and fix it :-( .
Online is not bad, it is just like playing on the Xbox again, just with better controls !
It can get a bit laggy, difference is unlike in the PC where you'll have one player jumping across the level you are all doing it.
That airport level is odd, spend the first half just moving down civi's, it does give you the option upon starting the campaign to skip the level though.
I think the game would have been fine without it or just start half way through the level when your cop killing............... much more acceptable !
3rd person playing is dam strange too
Ed