This will (Repeat: will) be a pain to add, but if someone did we could have missiles launching from anywheres we wanted.. And other things too.
In UpSpring, if we had an arrow attached to the objects known as flare, flare1 and so on that showed where a weapon would fire, we could have missiles that shot out from the side, or a sweeping machinegun (hehehe)
The arrow would rotate around the flare at a certain distance.