Unit HomeMCTSSAOperationsTechnical Infrastructure and Service Group (TISG)
Marine Corps Systems Command


Marine Corps Systems Command

Equipping our MARINES

MCB Quantico, Va.

TISG Mission

The Technical Infrastructure and Services Group’s (TISG) mission is to enable Command, Control, Communications, Computers (C4) test and integration support in the form of maintenance; configuration management; lab environment; network management; collaboration management; and ensure an accurate reflection of current Marine Air Ground Task Force (MAGTF) C4 systems and network architecture to provide the Marine Corps with a unique capability to test and assess new and existing C4 systems in a controlled, repeatable, and re-configurable environment.

TISG is composed of four branches: Communications, Configuration Management (CM), Marine Air Command and Control (MACCS) Maintenance, and the Office of the Chief Information Officer (OCIO) at MCTSSA.


The Communications Branch is responsible for providing all network connectivity and communications requirements for the Systems Integration Environment (SIE) and associated elements participating in official tests aboard MCTSSA through the Network Operations Center (NOC). The NOC has several key responsibilities to include: manage internal and external data network communications requirements; plan, install, and maintain root-level network services in support of the SIE; perform network security functions supporting testing parameters; and manage commercial and tactical voice circuit switching requirements for the SIE & supported tests. The Communications Branch also has a Communication/Electronics Section is responsible for maintaining all tactical ground communications equipment.

Configuration Management

The CM Branch is charged with managing, sustaining MCTSSA's SIE; supporting interoperability; and integrating C4, Intelligence, Surveillance, and Reconnaissance (ISR) Systems in testing. The branch performs oversight of labs resource allocation and conducts configuration management of events.  Lastly, this branch updates and maintains the configuration management library for the command.

Marine Air Command and Control (MACCS) Maintenance

The MACCS Maintenance Branch is responsible for the accountability, control, and maintenance of all air equipment associated with the SIE. The MACCS Maintenance Section is composed of the Tactical Data Systems (TDS) and Radar Sensors sections.

Office of the Chief Information Officer (OCIO)

The OCIO is the Marine Corps Tactical Systems Support Activity branch for the planning, coordination and delivery of information technology (IT). The OCIO provides: IT infrastructure operations and maintenance; SIPRNet service operation and maintenance; NIPRNet legacy network and system support; Information Management to include Activity specific websites, databases and‎ applications; Marine Corps Enterprise Network (MCEN) management; and Cybersecurity/Information Assurance management.