Lance Cpl. Daniel Williams and Cpl. Riley Dobbs, mortarmen with 1st Light Armored Reconnaissance Battalion Camp Pendleton, Calif., duck after firing a mortar round at a training site outside Yuma, Ariz., Aug. 13. Marines conducted combined arms attacks with air and ground assets to enhance proficiency controlling fixed wing and rotor wing aircraft during Scorpion Fire during a two-week training evolution that began Aug. 6. - Lance Cpl. Daniel Williams and Cpl. Riley Dobbs, mortarmen with 1st Light Armored Reconnaissance Battalion Camp Pendleton, Calif., duck after firing a mortar round at a training site outside Yuma, Ariz., Aug. 13. Marines conducted combined arms attacks with air and ground assets to enhance proficiency controlling fixed wing and rotor wing aircraft during Scorpion Fire during a two-week training evolution that began Aug. 6.