Alpena Combat Readiness Training Center. US Air Force MASTER Sergeant Piper (left) US Air Force Technical Sergeant Swartz, Team Martinsburg, apply first aid to a victim during a simulated base attack. The annual TOP DOLLAR competition at the Alpena Combat Readiness Training Center, Michigan, brings together finance personnel from four Air National Guard bases from around the United States. Teams must operate in simulated forward-deployed area, and be prepared to react to possible hostile attacks at any time. The winning team receives a trophy to take back to their home station