Operation: Shell Game is a tabletop RPG scenario that was part of the Star Wars: Age of Rebellion beta, which was published by FFG in August of 2013 during Gen Con Game Fair.
Rebel agents are tasked with the mission of stealing an Imperial experimental spacecraft. They get inside the proving ground, free the vessel, and as their backup arrives, a major fight breaks out that puts an end to Project Shell-cracker.
Despite the fact that the Hammer base, one of the adventure's two primary locations, is written to be a Rendili StarDrive Firestar-class Orbital Defense Station, the single image included in the adventure actually shows a Rendili StarDrive Orbital Construction Dock instead.