The Mark VI is a C.O.P. Quad-Barreled Flak Cannon.
About this creation
The Mark VI Anti Aircraft Gun uses four 44mm FLAK cannons to shoot down enemy aircraft. While not as accurate as guided missiles would be, the Mark VI's (and the FLAK shells) are cheap to produce and easy for soldiers to learn. The Mark VI lacks an engine, so a truck or other vehicle is required to tow it. To keep the recoil from knocking the AA gun back, two small pegs (the things in between the wheels) are hydraulically turned to face the back of the gun. They then dig themselves into the ground by use of sheer power (it slams them into the ground). The keeps the gun from being knocked back. The Mark VI also comes in a stationary version, the Mark VI-S.