The Arca Company Barracks served as a place of residence for clone troopers, including Omega Squad, during their time on Coruscant. Upon returning from Geonosis, the six Null-class ARC troopers seized control of the barracks, as they resisted being placed in stasis tubes because of the lack of command during combat. They defended their position against the Coruscant Security Force until Kal Skirata convinced them to cease their occupation; Skirata then rejoined the Grand Army of the Republic, and the Nulls faced no punishment. The Special Operations Brigade was stationed at this location, and it also housed offices for Jedi Masters Iri Camas and Arligan Zey.