her ya go matey. In a trigger or something you'll need to start the script with:
[NAME OF MAN WHO WILL BLOW THE CHOPPER, CHOPPER NAME] exec "ChopperBlow.sqs"
And example would be, my civilian who will jump in the chopper is called "Bill" and the chopper is called "Heli1"
[Bill,Hel1] exec "ChopperBlow.sqs"
Hope thats what you wanted.