D-5104, more commonly known as "Mag", is a faithful clone of the Grand Army of the Republic. Currently the A'denla Commanding Officer (CO).
History
Clone Trooper "Mag" had his start in the 21st Marine Platoon under the leader named M-2117 "Abrams". It was during the ending days of the conflict on Coruscant, yet there were still patrols being sent out. Both "Abrams" and "Mag" went on such patrols and saw action on the streets of Coruscant. It was not long after that a clone named "Wolf" joined the ranks as well. Together, all three clones formed the A-Team of GAR. Able to take on any challenge with "Abrams" being the leader, "Mag" being the guns, and "Wolf" being the comic relief. It wasn't long before Wolf and Abrams outranked Mag, Abrams leaving A'denla to become the ARC trooper of Udesla Legion, and Wolf becoming the ARC of A'denla, yet even then the triumvirate continued it's reign of badassery over GAR.
After Wolf and Abrams departure from the A'denla Legion, Mag was given the title of Commanding officer, which at the time meant he was the head of GAR's navy. Noticing a distinct lack in ships and pilots, Mag put most of his effort into securing Naval Assets for the Grand Army, the most notable being the addition of two Venator Class Star Destroyers, the Karma and the Nova, as well as the acquisition and distribution of a fleet of retrofitted Clone Wars era fighter craft.
During the Swoop Races held by X-play and the Hutt factions, Mag decided to pilot a swoop under the Grand Army Flag to show that even mass produced clones could fly and fight with the best pilots and drivers in the galaxy, and he succeeded, holding a strong second place in both Seasons of the events, and coming in first place multiple times against ace pilots like Nora Saria of the Renegade Armada and Rakiko Lowtide of the GNN.