Stephan works in the range and final inspection for Sig Sauer's quality control department, specializing in targeting and evaluating military and law enforcement contracts. He is a sergeant in the United States Marine Corps and has 7 years' experience as a certified small arms repair technician (gunsmith). Stefan's primary duties in the Marines as Platoon Sergeant and Armory NCOIC ( non-commissioned officer in charge ) are to Advise, Instruct, and Lead. Since 2008 he has been involved with instructing Marines on basic and advanced tactical marksmanship skills on multiple different weapon systems for mission success on the battlefield. Along with numerous combat training qualifications, Stefan has served one combat tour in Iraq.