The Contractor shall provide services for the maintenance and sustainment of four (4) RACER Heavy Platforms.The Contractor shall provide service level subject matter expertise to maintain and sustain ... The Contractor shall provide services for the maintenance and sustainment of four (4) RACER Heavy Platforms.The Contractor shall provide service level subject matter expertise to maintain and sustain the RHP hardware. The Contractor shall provide service level subject matter expertise to maintain and sustain the RHP software. See attached PWS.