Weapons: NSV 12.7mm Heavy Machine Gun RPG-7 Rocket Propelled Grenade RPK Light Machine Gun RPD Squad Automatic Weapon GP-25 Grenade Launcher B-roll of Air Defense Artillery Soldiers train Afghan National Border Police on Heavy Artillery at FOB Spin Boldak, Afghanistan. Sound bites include 1st Lt. Darryl Diltz, Training Adviser, 2-44th Air Defense Artillery, St. Louis, Mo. and Staff Sgt. Robert Osterman, Training Advisor, 2-44th Air Defense Artillery, Ft. Wayne, Ind. Produced by Staff Sgt. Joseph Vigil. 1/4/11