I just tried that and it spazed out the player camera (lots of flickering like the player was turning in and out from the cargo seat). (Probably what the action is referring to when it says animations get glitched when used on non crew members, however, I was using it only on the driver and commander.) I used splendid cam to see what was actually going on outside the vehicle, and the driver and gunner were turned out and not attempting to turn back in (even for a frame).
Here is my code:
a3APC action ["LightOff", a3APC];
a3APCC action ["TurnIn", a3APC];
a3APCD action ["TurnIn", a3APC];
The apc is a3APC. a3APCC is the commander and a3APCD is the driver. I also am using an action to turn the apc's lights off so it doesn't paint a huge target on it's self. (The light code was preexisting and works properly.)
Just for reference, the player is in cargo on the APC (either the first or last slot, I'm not positive).
Thank you for the fast reply. Any ideas on how to tweak that, or any new ideas?