Just running into something that caused me to review and add to my personal ROE's.
On map airplanes. I'm beginning to dislike them.
On map airplane ROE:
No taking victory hexes by flying "over" them.
No blocking movement of ground units.
No using them in ground assaults.
No blocking the movement of air units with ground units. (Yes, I had a situation where I had an air plane surrounded by ground units so that I could not move it. LOL!)