The first vehicles is the Cierva HS-45, a small hover-based scout craft. In fact, this is Costigar's first vehicles implementing hover technology. It is armed with three 10mm cannons, mounted under the nose.
The second vehicle is the Type 75 Scout Car, yet another small, fast scout vehicle. It is armed with a single 20mm cannon, and can hold one passenger, along with the driver.
The last "vehicle" is the XATD-1, or Experimental Anti-Tank Device-1. It lacks an engine, so it must be towed by other vehicles. It fires super-heated tungsten sabot rounds, to punch through enemy armor. Since tungsten has such a high melting point, the rounds themselves can be heated to great temperatures. This allows them to punch through even the newest armor. Costigar plans to put many of these along the Victoria Line.
Quoting Broken Bricks
Nice work, especially the last gun piece, and the theory behind it is good.
Thanks. The file had been sitting on my computer for while; I made it long before DnC, I or II. I think the model isn't that good, but like you said, I like the theory of a semi-stationary gun shooting super-heated shells.