The newest version.

Here is the newest version of the tank. You may need to tweak it or add sensors, this is what worked for me. A few variations you could try is converting it to an add/subtract drive-train, (example), adding gears for more torque, or adding a turret.

The final order and it's done!

I got my last order yesterday and finally was able to finish the tank!
I had to make more changes because it was so flimsy but now it's solid
as a rock.