This was planned to be a real thing in WW2 no joke. It weighed 180 tons and was supposed to be some sort of impenetrable mobile fortress that in reality would've made great target practice for allied fighter bombers. To this day there's only one left which is a combination of a hull from one and a turret from another.

Controls:
VTOL+Trim for gun controls and Yaw to turn, throttle up to move forward. If you don't like the throttle for moving forward then edit in the engine located at the front in the fuel tank.

Notes:
I'm aware that the tracks mod exists however when I made this the mode was yet to be released and I already made some tracks and replacing them would be to much of a hassle.