The MS-06S Zaku II Commander Type looks very similar to the normal Zaku, so much so, that the Earth Federation can generally only tell the difference from color schemes most pilots apply to their units and the increased performance of this version. The S-Type Zaku II features a squad-leader "antenna" that is mounted on the head on the Zaku II, which is used to designate squad-leaders or higher ranking pilots from other squad-members or lower ranking pilots. It also featured a more powerful Minovsky type ultracompact fusion reactor. In turn, the S-Type Zaku II had greater thrust and acceleration. This allowed them to move at speeds 30% faster than a normal Zaku II. This made it incredibly dangerous in the hands of the ace pilots it was handed out to, such as the "Red Comet" Char Aznable, who sank 5 Magellan-Class Battleships in the Battle of Loum.