Prevent player aircraft flying away when switching to unit

[Hovis]

As the title says really:

 

(Most) not all of the time when i switch to a unit and I've landed my huey, the AI will jump into my aircraft and take it away on some magical adventure... No idea where or why, is there a way to keep your aircraft where it is so you can come back to after the stint in the ground unit?

 

Overall objective here is to land at a FOB, unload a unit using CTLD, use it as JTAC for a multiplayer mission, then jump back into the helo to carry on the mission

[Spawnferkel]

This. Also the AI manages to take off with a shut down helo instantly. There is no startup or any flight preparation involved. As soon as the player relinquishes control to take over a ground unit, the AI gets the chopper airborne.

 

I wish there would be some kind of "AI parking brake".