CT-1112 known as Sarge was one of the earliest batches of clones to come out of the Kamino cloning facilities. He has passed completed training with stellar performance and earned a reputation of being the toughest critter to ever to walk the surface of the planet. So much so that he has been involved in the training of many younger clones.
When the War broke out his training days were over and he saw service at the battle of Geonosis and many other campaigns at the start of the war. While he may not be a commander many of the Clone Troopers will respect his authority over that of any Clone Commander, thus earning the nickname of Sarge.
Fighting the Confederacy and defending the Republic is where his adventures begin....