A grotesque, oversized tank fused with organic matter, resembling a bloated fish or amphibian. The tank's exterior is a mix of rusted metal and slimy, translucent flesh, with visible veins and pulsating areas. The main body is cylindrical with irregular, bulbous growths, and the front features a large, gaping maw-like opening for the cannon. The surface is covered in a combination of algae, barnacles, and oozing bio-organic secretions, giving it a wet, glistening appearance under dim light. The tank's treads are partially organic, with muscle-like strands intertwined with mechanical parts.