Create an empty helo, name is helicopter1
Create a pilot, name him pilot1
create a squad.
add them to cargo via {_X moveincargo helicopter1} foreach units squad
in pilot init, put "this moveindriver helicopter 1"
give pilot a waypoint to a helipad with "Transport Unload
OR
give pilot a waypoint with the init being "pilot1 land "GETOUT" or LAND