I know that tank tracks are currently not possible, but would it be possible to create cannons of some kind, to see what would happen, potentially leading to a tank like creation (without the tracks). This is mainly because destroying stuff would become even more fun
Shooting giant metal balls definitely sounds fun. I'm sure someone from the modding community could do if they want to. I would, but I don't have the time to learn how.
*cracks whip* Oh Drowsyyyyyyyyyy!!! Just kidding, but it should be somewhat possible, once beams/collision triangles can have thickness. It was proved by the catapult that that propulsion can be possible, but I would be happy to see this.