hay
had the same prob on my actual map...do this:
create a parachute from Empty/Air (there are 4 in list, i think 1st is an East, second a west chute, at least my resistance friends shot at the first one)...name the parachute, as exemple "chute"
create a soldier, in the init field type
this assignasdriver chute; this moveindriver chute
after this, you may change any weapons you like to...
hope this works for you
edit:
i used a little script called parachute1.sqs
#place chute
_chute1 = "ParachuteWest" createVehicle getmarkerpos "chute_marker"
pl1 assignasdriver _chute1
pl1 moveindriver _chute1
_chute1 setpos [6525,8454,250]
#end
exit
then create a unit, name it pl1 (or edit the script to your choice and in the init field put: this exec "parachute1.sqs"
If you want more then 1 chute...what i guess....just replace all "1" with a "2", "3" and so on..also in script name...
i hop i didn't confused you more than necessary... ;D