Quoting Matthew McCall
Nice tanks. The grey tank looks powerful, and I like how you improved the tan tank. But how is it though that although the tank barrels are all the size, the grey tank's one is said to be quite a bit bigger?
The 2x2 round bricks in my opinion are too big but the grey tank's barrel is even longer. Look at Dreadnought's Talon. It has a 220mm gun and it has a same diameter.