It's fully possible I'm missing something, but in the second mission, upon clearing the centre lane all the way through to the airfield and getting the friendly airfield, I was able to land successfully in the not-Mig-29 but nothing seemed to happen. Not sure if there's meant to be ATC voice lines but I heard nothing from them, and after trying to hit a dead stop in a few places including inside the 'R' circle on the minimap nothing seemed to happen.
Super impressed with the level of polish for how early this is otherwise, I have to say.