GRUNTS are grown aboard the Darwin's clone vats and educated to be dependable and battle aware from day one. They are biologically and genetically enhanced fighting machines and are utterly expendable. As a cloned resource they provide the backbone of the USC's assault forces in the battle to reclaim Earth. They performed admirably out in the Besalius System during the Colony Wars and distinguished themselves as capable and resourceful fighters, being gifted with the ability to control and manipulate almost any vehicle right from the outset. Their implanted skills and knowledge allows any of them to go from piloting an APC to strafing in a fighter depending on the mission circumstances.