Ontos

The vehicle that would eventually be called the Ontos started out as the first of three prototypes created by Grumman Amalgamated designers. While all three performed adequately, the Ontos was chosen due to the fact that its main armament never needed to be reloaded in a protracted engagement. It is rumored that the designer for the Ontos was inspired by an ancient and obscure Terran vehicle that shared the same name.