Pfc. Kevin J. Oronaponce, a rifleman with 2nd Battalion, 2nd Marine Regiment, applies a tourniquet to a mannequin during the final test for the Combat Trauma Care Course aboard Marine Corps Base Camp Lejeune, North Carolina, April 24, 2015. The mannequins were equipped with a system that allows artificial blood to bleed from various wounds and recorded voices to talk, providing a more realistic experience. (U.S. Marine Corps photo by Pfc. David N. Hersey/Released) - Pfc. Kevin J. Oronaponce, a rifleman with 2nd Battalion, 2nd Marine Regiment, applies a tourniquet to a mannequin during the final test for the Combat Trauma Care Course aboard Marine Corps Base Camp Lejeune, North Carolina, April 24, 2015. The mannequins were equipped with a system that allows artificial blood to bleed from various wounds and recorded voices to talk, providing a more realistic experience. (U.S. Marine Corps photo by Pfc. David N. Hersey/Released)