N-Tek. R.O.C.C stands for Remote Operational Command Center. They are like tanks, but are better than tanks. They can be driven on land and on snow. It has missiles and is perfect for combat.
In Season 2, an upgraded R.O.C.C is shown, replacing its predecessor. The new R.O.C.C has more cannons, and also has missile launcher. Plus, it sports a look to boot.