You guys are giving me new perspectives. I like all points of view. I just attached the cannon that you can see on the first picture. Now I'm lookin' for machinegun turrets to add to him. I'll use the central hole like a gun nest, so you can direct your ideas to how reinforce it to not be vulnerable to grenade attacks.

I'm thinkin' this tank like a more heavy weight for OG. The next one will be a fast attack, maybe using the Wolverine chassis.

Thanks again for help and just don't stop.