A small group of AI board an empty vehicle they move to a parked empty chopper.
The units get out correctly at the get out waypoint.
There is a get in waypoint over an empty chopper.
The units move to the get in waypoint and one unit gets in the other unit returns to the other vehicle. {F18431}
Mission included, just observe what happens.
Other users are having the same problem, it can be scripted around using leavevehicle in the getout waypoint.
Using just waypoints works perfectly in A2/OA without any addition scripting.
Closing due to lack of activity in over five months. If this issue is still reproducable for you, please create a new ticket for it or ask for this one to be re-opened.