what exactly mean “mission” ? a landing challange ? a normal flight starting over the “earth menu” ? a flightplan ?
I see you reported CTD already a long time ago within the big CTD thread. Was your issues ever fixed or you speak just about your old issue ?
Have you read and tried the hint given within these thread ?
Otherwise you should know about we would asking you ! ( overcloacking, xml, drivers, systems specs , etc… : we not need to repeat all again )