Although the MS-06F Zaku II was the most heavily mass produced Zaku model of the One Year War, a handful of Zakus were modified for improved performance and assigned to squadron commanders and proven ace pilots. Known as the MS-06S Zaku II (Commander Type), the S-type Zaku, while visually identical to the F-type except for the minor addition of a squad leader antennae on the head, was a big step up for its pilots. Featuring a more powerful reactor and greater thrust and acceleration, the S-type was a potent weapon in the hands of an expert pilot. Many aces and unit commanders gave their S-types custom paint jobs.
