Explosive Hazards Branch Technical Instructor Mark LeTourneau, with Engineer Center of Excellence Mobile Training Cadre West, shows Marines with Combat Logistics Battalion 5 the different types and methods insurgents will use to attack combat logistics patrols during the lane training portion of the new Combat Logistics Patrol course. This course is intended for senior sergeants, staff non-commissioned officers and lieutenants, to learn what it takes to properly command a combat logistics patrol.