I appreciate the feedback, the mission was made to be played once and not for continual playability like Op Bactria for example. Ensure you open the mission in editor and resave due to update 3. Regarding the enemies at the crash site if you listen to the voice commands the pilot will tell you where the Bad guys are relative to his position and the commander informs the flight of the backup patrol in an adjoining city. In addition, you are told at the beginning of the mission about rearing and fueling at the airbase using taxiway Sierra as alternate. I believe closer attention to the mission brief info provided and voice overs will hopefully assist you in this mission in the future.