For those who have tried to play all the campaigns threw TA, how buggy is it?  Is it just problems like missions not ending or what?  If a missions want end is there away to watch the missions ending and select the next mission using a cheat code or something.   I was looking forward to getting the retail release of the ultimate edition tomorrow, but the talk of bugs has me worried.  One of the main reason's I was going to get GC instead of Sins was because of the single player campaigns.