_obj = "Type" createVehicle [_px,_py,_pz]
_obj setPos [_px,_py,_pz]
_obj setDir _d
are the commands you are looking for.
"Type" can be any kind of vehicle class
_px,_py,_pz are similar to cartesian coordinates (_px+ is East, _py+ is North, _pz+ is elevation above the closest 'floor')
_d is the azimut (0 is North, 90 is East and so on)
Use this multiple times to align some objects in the desired shape.