Unknown and unmarked ships are roaming the sea. Due to the concern of lack of resources, there was a need of mobile coastal defense. Hence, the CAT Corp. develop the Carabao, a heavy tank prototype. It's a big and slow moving target making it impractical against tank warfare. All it has to do is move to strategic positions and rain down metal to enemy positions. It proved to be useful when unknown ships refused identification and tried to takeover a seaport, were easily sunk. The Carabao proving it's worth, although eating a lot of resources, may see variations in the future.

1 - main armament;
VTOL and TRIM for turret movement;
Pitch and Roll for tank movement