Air Force Materiel Command's (from right to left) Jerry W. Zaborksky, STAFF Sergeant Timothy A. Kane, PETTY Officer Second Class Scott S. Faculak, and STAFF Sergeant Brenton K. Pomeroy, armed with M16 and M60's, leave their High-Mobility Multipurpose Wheeled Vehicle (HMMWV) to prepare to fire at targets down range as evaluators look on during the combat weapons competition at DEFENDER CHALLENGE 2000 at Camp Bullis, Texas. Defender Challenge is the annual Air Force wide competition sponsored by Air Force Security Forces. This competition showcases the talents and capabilities of 13 international Security Forces teams in seven physical fitness, base defense and policing skills over six days