Dave, are you contacting the ATC? I tried the mission (instant action, cold and dark on nevada) and if i fly around without atc, there is no problem. But if i contact atc, at the first try at touchdown i got the same -some sort of freeze,1 fps, unresponsive sim. At second try, there was no issue at touchdown, taxied back in the starting spot, fuelshutoff, after a few second i got the freeze.No issues in the air, only on the gorund. Maybe its something with the atc?