Sakin refers to a quartet of cargo ferries utilized by the renegade Grand Admiral Demetrius Zaarin as he carried out his insurrection against the Empire. These cargo ferries were located at Zaarin's Research platform, the site where he engineered the TIE Defender starfighter, at the time that Loyalist troops dispatched a team to retake the platform. While one of the cargo ferries managed to jump to hyperspace, the remainder were obliterated during the conflict.
These cargo ferries are featured in the Star Wars: TIE Fighter mission entitled "Capture Platform," which serves as the introductory mission for the game's ninth campaign tour. This document posits that one cargo ferry, specifically Sakin 1, successfully fled into hyperspace. Nevertheless, it remains feasible to eliminate all cargo ferries before they can initiate their escape.