Over time, Sunder has developed into the 'older sibling' of all the sweeps, watching their every move and reporting to Scourge when someone "misbehaves," as he calls it. Aloof, he carries a certain favor with Scourge for his reporting of what actually goes on among the Sweeps. In robot mode, Sunder is armed with a laser rifle capable of firing rocket-propelled grenades. In Sweepcraft mode, he is equipped with machine gun turrets and dual plasma cannons. Arrogance can sometimes go too far, putting him in dangerous situations especially among the other Sweeps.