I have my Stuka zu Fuss halftrack set up to launch Estes A10 rockets in the rear 2 racks which are fitted with brass tubes. They have to have a small nose cone on them to fly straight. They are pain to reload and string the firing wire, but they do make a very impressive display outside. The same could be done with a Sturmtiger, but the laucher tube would have to have a brass tube going out the bottom of the vehicle.