CC-3321, nicknamed "Scar", was a clone trooper Captain serving the Grand Army of the Republic during the Clone Wars. Assigned to the cheerful Jedi Knight Serin Waylun, Scar stood as second in command of the 98th Mechanized Division. During the first year of the war, Scar and Waylun rarely saw any combat, as the division was often place on guard duty on industrial worlds. However, Scar offered his insight and ideas during tactical meetings and strategy conferences, becoming well experienced in planning offensive operations.