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Ground Combat Tactical Vehicles

Last Revised: May 8, 2014, 2:00 pm
  • Ground Combat Tactical Vehicles

Ground Combat and Tactical Vehicle (GCTV) Modernization and Sustainment

The objective of GCTV modernization and sustainment is integrated management of vehicle capability utilizing a portfolio based approach.  Capability is expressed in the form of requirements.  Requirements are aggregated, stated and validated for individual systems in capability documents.  Integrated management strives to reconcile requirements with operational demands, threat projections, long-term strategy objectives, vehicle life cycles, the budget process, systems engineering principles and the acquisition system.

The GCTV portfolio is purpose built to source a balanced mix of ground combat and tactical vehicle systems from which units can task organize.  The GCTV portfolio provides the capabilities and capacities demanded by the broad span of MAGTF operating environments and threat sets the MAGTF must dominate.

Two key functions of the portfolio are the coordination of modernization requirements and the sustainment of legacy systems.  Modernization activities include replacement of legacy systems with modern systems.  Amphibious vehicles are the number one priority within the portfolio.  The second most pressing priority is partial replacement of the legacy HMMWV fleet with a modern truck. Additionally, modernization includes focused upgrades in capability such as replacement of a legacy turret weapon system with a modern one.  Sustainment activities include those actions designed to manage or counter obsolescence, address safety issues, and sustain or extend system service life.  As an example, Marine Corps vehicles are resourced with modification funding to meet their sustainment needs.

The portfolio is divided into six capability categories: Light, Medium and Heavy Combat and Tactical Capabilities.


In the near term, we remain focused on mitigrating or closing the portfolios' two most pressing shortfalls in capability: Heavy Combat Capability (Assault Amphibian Modernization) and Light Combat & Tactical Capability (HMMWV Modernization, JLTV, and Sustainment).

The AAV is deployed worldwide and is in daily use across multiple theaters.  The upgrade of the AAV is a critical activity that will modernize the legacy system with materiel improvements that increase both force protection and platform survivability.  Basic in nature, these upgrades work to close one of five shortfalls in Assault Amphibian capability and help to keep the fielded system operationally relevant and competitive until it can be replaced.  In the upcoming fiscal year a milestone decision is anticipated which will move this effort into program status. Concurrently, we are pursuing a wheeled Amphibious Combat Vehilce (ACV) as a complement to the AAV.

The HMMWV is no longer in production and requires significant modification to safely carry payload and legacy  armor packages that have been added over the last decade of combat.  The HMMWV Sustainment and Modification Initiative (HSMI) will increase payload capacity and permit safe operation of  legacy armored HMMWV..  The HSMI program is complementary to JLTV, as part of a balanced Light Combat and Tactical Vehicle portfolio. Our Corps' future light fleet will consist of one-third JLTV, one-third armored HMMWV/HMSI, and one-third unarmored legacy HMMWVs. . The JLTV combines unarmored HMMWV mobility and payload with armored HMMWV protection and M-ATV underbelly protection.  The JLTV is fully transportable and provides a modern and enduring solution for protected mobility in the most stressing environments in which the MAGTF will operate.

  • About Concepts and Programs

    The vision of the Concepts and Programs project is to provide political and military leaders with timely, accurate, and relevant information. The Concepts and Programs project is the premier strategic communications vessel the Marine Corps relies on to inform Congress, the Office of Secretary of Defense, Chairman of the Joint Chiefs of Staff, and Think Tanks about the Corps’ vision.