Hi
search you computer for a script could:
init_closeair
it came with snypir's SP/MP support pack.
And move the script in to your mission map.
And in the onactivation for the waypoint type in:
["rapple",[chopper name,[groups to disembark]] ] exec "\SNYSptpack\interface.sqs"
IÂ'm not sure were to type it in, but I could test it and post back.