Belisarius M13

The Multi-Modal Ground Vehicle Model 13 Belisarius, (MmGV-M13) commonly known as the Belisarius M13, is a vehicle chassis used by over a dozen ground vehicles of the Terran Federal Army. It is primarily designed by Atlantis, but licenced modified versions exist made by TMP and Terran allies. 
There are over three dozen variants of the M13, including infantry fighting vehicles, armoured personnel carriers, anti-air platforms, anti-tank platforms and others. The Belisarius was introduced in 2698 and was intended to replace the Hannibal M12, which was meant to be slowly phased out. However the M12 remains widely in service today and is approximately twice as common in Army service as the M13.