The Scorpion is the most common armored fighting vehicle employed by the UNSC in every Halo Game that was set in the Halo universe during the fictional Human-Covenant war, it is used in operations requiring heavy firepower or an anti-vehicular platform. Combining firepower, resilience and mobility, the Scorpion has proven itself formidable and earned the respect of friend and foe alike.
The Scorpion may not be the most powerful or the fastest of the UNSC's fleet of main battle tanks, but for the most part, it represents the best possible balance between mobility and firepower.
Indeed the vehicle's prominence among the UNSC armed forces is due to its low production cost, transportability, and overall firepower. Ceramic-Titanium armoring makes it almost invulnerable to small-arms fire and easily shrugs off normal ballistic and plasma weapons, while anti-mine software and electronics provide additional protection. The tank also features a small crew size, one operator and up to four passengers on the treads.
The Scorpion's main weapon, mounted on a 360° rotating turret, is the M512 Smooth Bore High Velocity Cannon which fires a 90mm tungsten shell, including S1 Canister Shells. 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 Wraith in two to three, depending on where the shots hit relative to the target's hull.
For additional offensive power some Scorpions will instead mount a 105mm cannon. The M247T Medium Machine Gun serves as the tank's secondary weapon, delivering 7.62mm armor-piercing rounds with speed and thoroughness. It is mounted co-axially.
The primary difference with this model is that the M808B can be completely controlled by a single cyborg pilot or a single human equipped with a neural interface. The machine gun is coaxially mounted next to the main cannon, removing the need for a dedicated machine gunner.