Young as he may seem, Duke has already garnered more experience leading teams in dangerous missions. With his sharp tactical skills and brilliant charisma, he was very much a natural choice to lead the G.I. Joe Team in its never-ending mission to defeat Cobra. As a man of action, he maintains a rigid discipline keeping himself fit and in top fighting condition that he is virtually unbeatable in combat. If he had any faults, it's just that he has gotten too used to the military life, he now finds it hard and awkward mingling with his troops on leave.