There already is a vehicle that calls itself "spider tank", but it's just an upscaled spider mine with an uncanny walking animation.
This project was supposed to be a complete reimplementation with actually good leg animations. The chassis itself operates a lot like a hover tank, and the legs operate somewhat individually based on how the vehicle wants to move. (This prototype doesn't actually move the legs, and the vehicle has no weapons in its current state. It's just a large gliding spider.)