Arenalogic

JCATS (Joint Conflict And Tactical Simulation). The Joint Conflict and Tactical Simulation (JCATS) program is an interactive simulation tool sponsored by U.S. Joint Forces Command (USJFCOM) and managed from the command’s Joint Warfighting Center (JWFC) in Suffolk, Va. 

JSAF (Joint Semi-Automated Forces) is a simulation system sponsored by U.S. Joint Forces Command (USJFCOM). 

Virtual Battle Space -

VBS 2 From Bohemia. VBS2™ is used right now by military organisations worldwide including the USMC, ADF and UK MoD for mission rehearsal, tactical training and simulated combined arms exercises.

Steel Beast Professionel (military version) from eSim Games.

The Steel Beasts product line is a PC-based simulation of small-unit armored and mechanized combat. It models the gunner’s, commander’s and driver's positions of various armored fighting vehicles in a virtual 3D environment and is capable of networked and solitaire training for single-vehicle, platoon, and reinforced-company scenarios with a high level of tactical confidence

IFACTS Forward air controller simulator from IFAD.

IFACTS was designed to provide forward air controllers, TACP units and pilots with the ability to train and sustain CAS mission team and individual skill sets.