An R2 unit was employed by Wes Janson in a battle which occurred above Gall. Viera Cheran, the treacherous Chief Technician of Rogue Squadron, had programmed it with the intention of seizing command of Janson's X-wing fighter and eliminating Luke Skywalker. This plan was unsuccessful, because Skywalker managed to obliterate the droid and render Janson's fighter inoperable.