// Defaults
_pos = getMarkerPos "MarkerOne";
_units = ["Graves","US_Delta_Force_SD_EP1","US_Delta_Force_M edic_EP1","US_Delta_Force_Night_EP1"];
_plane = "C130J_US_EP1";
// Spawn your plane and fly it at 800m up.
_spawnplaneArray = [_pos, 90, _plane, WEST] call bis_fnc_spawnvehicle;
_spawnplane = _spawnplaneArray select 0;
_spawnplane flyInHeight 800;
_spawnplane setPos [getPos _spawnplane select 0, getPos _spawnplane select 1, 800];
// Create your group...
_spawngroup = [[1,1,1], WEST, _units, [],[],[0.5,0.8]] call BIS_fnc_spawnGroup;
// and make them board the plane.
{_x moveInCargo _spawnplane} forEach units _spawngroup;