Cpl. John A. Dorn, a rifleman with Combined Anti-Armor Team Red, Weapons Co., 3rd Battalion, 7th Marines enters his humvee before leading a convoy out of Camp Wilson June 19. The 23-year-old Marine from Mitchell, SD was part of a convoy transporting snipers to Range 400 to participate in a training exercise during Mojave Viper. - Cpl. John A. Dorn, a rifleman with Combined Anti-Armor Team Red, Weapons Co., 3rd Battalion, 7th Marines enters his humvee before leading a convoy out of Camp Wilson June 19. The 23-year-old Marine from Mitchell, SD was part of a convoy transporting snipers to Range 400 to participate in a training exercise during Mojave Viper.