Nothing is known about his childhood, but it is known when he joined the military; 1 BBY. Avalon was trained as a Radiation Zone trooper. Being one of the most intelligent, fastest, and experienced soldiers in the Stormtrooper Corps, he was transferred to an Imperial Commando unit and received additional training at Raxus Prime, which held him back. He was also taught how to defuse time bombs, pilot TIE and non TIE starfcraft, and other intense training.