The Hispano-Suiza HS.404 is a 20mm autocannon of Spanish origin. It is extremely popular as an anti-air, anti-ship and anti-personnel weapon throughout the entire country but the prohibitive weight prevents even buff Ferozen men from using it as a hip fire weapon (unlike the modified Mk103 30mm autocannon). Offers high accuracy, muzzle energy and affordable cost. The infamous outback autocannon is inspired by the HS.404, so much so that multiple parts are interchangeable. If someone refers to the infamous Hispano-Suiza autocannon, this is the one and only.