Same here. I decided to create a mission for the first time; I loaded up the Nevada map with the M2000, but when it started it wouldn't allow me to fly. About a minute later I tried to re-open the game, but it would not load past 55%.
It must be something with the mission editor, but I do not know where to find the logs (I checked older forms about logs, but it looks like the log file destination has been changed.)
If anyone has the answer, please help. Im still looking for a solution myself.
Thank you.