Alexandros M6

The Atlantis AG Tank Alexandros Model 6, commonly known as the Alexandros M6 is the main levitation tank of the Terran Army. Being a levitation tank, it utilises anti-gravity technology, hence the AG in its official designation. 
Development began in 2699 in an effort to replace the Great War-era Model 5H. The first prototypes were manufactured in 2711, and mass production was launched in 2716. Like all Terran AG tanks, it is manufactured jointly by Atlantis Heavy Arms and Clarktech. It is named, as all its predecessors, after Alexander the Great. 
The M6 has an improved main gun compared to the M5 and a lower profile. The propulsion has also been completely overhauled transitioning to gravitational manipulation fields, drastically reducing both the heat and the noise generated by the vehicle.
Alongside the Charlemagne M9, backbone of the Terran Army's armored vehicles, the Alexander M6 is the most important armoured vehicle in the army. Out of a planned 16 000 units, 4 000 have already been built and 8 000 are on order to be complete by 2035.