M808 Main Battle Tank

The M808 Main Battle Tank, commonly known as the Scorpion, is the most common armored fighting vehicle employed by the United Nations Space Command armed forces during and after the Great War.

Design details
The M808 Scorpion is the UNSC's lead armored vehicle, having served for over three centuries. The overall design is externally identical to the 22nd century A-8 Tiger and its own predecessor, the T-14 Armata. The Scorpion's composite armor plating and secondary NxRA package makes it almost invulnerable to small-arms fire, being easily capable of shrugging off normal ballistic and energy weapons, while sophisticated anti-mine software and EMP-hardened electronics provide additional protection.

Armament
The Scorpion's main weapon is an M512 smoothbore high-velocity cannon, mounted on a 360° rotating turret and fed by an auto-loading mechanism, this cannon is capable of firing a wide variety of 105mm shells, including HEAT, APFSDS and canister rounds. Though this weapon can have difficulty penetrating the armor of some heavy vehicles, it is capable of disintegrating most targets in a single shot or gutting a hostile tank in two to three, depending on where the shots hit relative to the target's hull. A coaxial M231 heavy machine gun serves as the tank's secondary weapon, allowing the tank to effectively engage fast-moving targets, such as infantry and fast-attack vehicles. The Scorpion is also fitted with an active protection system and an M117 CROWS, which can be equipped with different weapons depending on the tank's mission profile.