In order to drop troops or supplies, a ground vehicle must be stopped.
Why not have same requirement for ending a ground vehicle mission?
If one can exit a moving vehicle then they should have to "eject" and thereafter be on foot before being able to end sortie...........or they can just take 2 seconds to stop and then end sortie.
All the other aces high vehicles must be stopped on the ground so you can exit so why not ground vehicles?