CAPE CANAVERAL, Fla. & RESTON, Va.--(BUSINESS WIRE)--Comprehensive Health Services, Inc. (CHSi), one of the nation’s largest and most experienced workforce medical services providers, was recently awarded a five-year contract worth $4.25 million to provide medical modeling and simulation training. CHSi is a subcontractor to Engineering & Computer Simulations (ECS). ECS leads the major U.S. Air Force program called Air Force Medical Modeling and Simulation Training (AFMMAST) program. The pur