The COMVAT is an prototype American Fire Support Vehicle that appears in Wargame: Red Dragon.
History
The COMVAT (Combat Vehicle Armament Technology) program was based primarily on the chassis of the M2 Bradley (though a few used the M2A1 chassis), but unlike the CVAST turret, the COMVAT turret was a partially-modified version of the standard Bradley turret instead of a new turret. The COMVAT turret modifications centered around the new main gun, which used new CTA (Case-Telescoped Ammunition). The COMVAT’s CTA (developed by ARES) uses a payload assembly that is seated entirely within the cartridge case; when the round is fired, a small booster charge is first ignited to propel the payload assembly a short ways into the gun barrel, at which point a combustible-case main propellant charge did the main work of sending the round to the target. A CTA cartridge is therefore lighter and more compact than standard ammunition, allowing a vehicle to carry more rounds for its main gun. The gun, also designed by ARES, uses a rotating breech, simplifies the gun’s mechanism, making it more reliable and increasing the cyclic rate of fire. The initial CTA gun used 30mm ammunition, but this was quickly up-gunned to 45mm, and later a gun that could be switched between 45mm and 60mm with a barrel change and the change of a few other parts. A few versions of Bradley COMVATs were also tested with casemate turrets, with the commander and gunner seated inside the vehicle behind the gunner. In the end, the primary stumbling block seem to have been the lack of desire on the part of the Army’s supply system to introduce a new family of ammunition, and the Pentagon’s lack of desire to pay for it.