 However, MCTSSA was able to develop the capability to become a major influence on the acquisition and support of Marine Corps tactical C4 systems.In the late 1980s, the Marine Corps established the Marine Corps Systems Command (MARCORSYSCOM) and MCTSSA was removed from MCDEC and assigned to the new command.MCTSSA now had an O&M, MC budget for operating expenses and post deployment support as well as an RDT&E budget for specific system support.