I'll dig it out of the mission tonight and post it up for you.

It's pretty basic from what I remember although a bit messy as I'm more a code "copy paster" than a code writer :P

Ok I have 3 empty markers on the map vehicleSpawn, vehicleDelivery, and vehicleDespawn. Pretty self explanatory as to what they do.

then in the code section of the vehicle spawner I have
[["CUP_B_CH47F_GB","vehicleSpawn","vehicleDelivery", "vehicleDespawn"] execVM "scripts\slingload.sqf"]call BIS_fnc_MP;
which calls the script, you can use a different heli by changing the classname.

Then the frankenscript looks like this

if (!isServer) exitWith {};

// pull class names from arguments passed through execVM
_heli_class = _this select 0; 


// marker positions
_spawn =  _this select 1;
_spawn = getMarkerPos _spawn;


_destination = _this select 2;
_destination = getMarkerPos _destination;

_despawn = _this select 3;
_despawn = getMarkerPos _despawn;

"Roger! BIGBIRD 2-1 inbound with your vehicle, ETA 8 minutes" remoteExec ["hint"];
//remoteExec [[west,"HQ"] sidechat"Roger! BIGBIRD 2-1 inbound with your vehicle, ETA 8 minutes"]

	//sleep 120;
// spawn invisble helipad object for heli to target
_helipad_obj = "Land_HelipadEmpty_F" createVehicle _destination;

//while {true} do {
	// spawn heli
	_heli_spawn = [_spawn, 0, _heli_class, West] call BIS_fnc_spawnVehicle;
	_heli = _heli_spawn select 0;
	
	// safeguard it
	//_heli setCaptive True;

	_heli allowDamage false;

	// get heli's crew and assign waypoints	
	_heli_grp = group (driver _heli);
	_heli disableAI "AUTOCOMBAT";
	
			
	_heli_grp setFormation "WEDGE";
    _heli_grp setBehaviour "SAFE";
    _heli_grp setSpeedMode "NORMAL";
	
	// delete all of heli crews' waypoints
	while {(count (wayPoints (_heli_grp) )) > 0} do {
		deleteWaypoint ((wayPoints (_heli_grp)) select 0);
		sleep 0.5;
	};
	
	_mvWP = _heli_grp addWaypoint [_spawn,1];
	_mvWP setWaypointType "HOOK";
	
	sleep 5;
	
	// tell heli to move to and attempt to land at the destination
	_mvWP = _heli_grp addWaypoint [_destination,2];
	_mvWP setWaypointType "UNHOOK";
	
	// tell heli to move to and attempt to land at the destination
	_mvWP = _heli_grp addWaypoint [_despawn,3];
	_mvWP setWaypointType "MOVE";
	

After that I have a trigger at the vehicleDespawn marker that deletes the chopper and crew.
Hope that makes sense

Neato! I wonder if anyone around here knows someone who could possibly look this script over and clean it up / update it. It looks pretty good as is but with all the updates recently idk how it will work out.

Still works perfectly in my mission.