The orbital autocannon, sometimes written as orbital auto cannon, and also referred to as an orbital bombardment cannon, served as a starship-based weapon designed for extensive bombardments. An example of a vessel employing this technology was the Mandator IV-class Siege Dreadnought utilized by the First Order, which featured a pair of these cannons. The cannons mounted on the Siege Dreadnought Fulminatrix were deployed to annihilate the Resistance base situated on D'Qar, accomplishing this feat with a mere four shots. Moden Canady stated that these weapons significantly surpassed anything he had access to within the Imperial Starfleet, and their intended purpose was the systematic eradication of life from planets. A solitary discharge from such a weapon possessed the capacity to effortlessly dismantle planetary shields and transform a hundred cubic meters of planetary surface into vapor and molten residue.