Okay Guys Here is what I do.
Set the AH2's down, create their waypoints, then put in a Trigger  set to Radio Alpha with Text that says.  "Call in the Choppers."
I then press F5 (sync) and draw a line to the second waypoint in the choppers waypoint..  That way the Choppers  go past their first waypoint until I radio Alpha.  Then they do their waypoints.  Which I have stationed over my boys heads.  Watch the enemies burn.... Â
I even start them with a Get out waypoint then  Sync their Getin waypoint so that I don't have to listen to their chopper blades all the time. Â
Hope that helps
Styxx