US Air Force (USAF) SENIOR AIRMAN (SRA) Jason Basaldua, Tactical Air Control and Command (TACC) Technician leads another unidentified USAF AIRMAN, both with the 607th Air Support Operations Group (ASOG), Osan Air Base (AB), Republic of Korea (KOR), examines his target to adjust the sight on his 5.56 mm M4/M4A1 carbine rifle while participating in the shooting portion of Exercise TIGER CHALLENGE 2004, held at the Twin Bridges Training Area, KOR, which is an annual week-long competition for (TACC) Technicians to test their ability and knowledge of land navigation, various field test, rifle shooting accuracy, communications applications, and running an obstacle course