That fixed the problem, thank you!
For the record, I do sync the troops to the heli at the get-in/load waypoint.
Was the group remaining assigned as cargo because they hadn't ejected yet?
It's strange because the original parachute.sqs script i used came from the Chinook mission in OFP:CWC, but in that case the player is piloting the helo, not AI. Oops.
Thanks again for the help. I was beginning to wonder