From Halopedia, the Halo wiki
The M9 Main Anti-Aircraft Tank (MAAT), commonly referred to as the Wolverine, is a half-track anti-air vehicle used by the United Nations Space Command. It is manufactured by Ushuaia Armory.
As its name suggests, the M9 MAAT is designed for anti-air combat. It is not a tank in the traditional sense, rather using a half-track design which enables it to operate in rough terrain; it received the "tank" moniker due to its development alongside the UNSC's main battle tanks, as well as due to its general architecture and framework. After serving in the Insurrection, the Wolverine was used to great effect in the Human-Covenant War, most prominently during military engagements on Harvest, Arcadia, Dwarka, Jericho VII, Miridem, and Troy. After the Human-Covenant War, the Wolverine was used in the Battle of Draetheus V against Merg Vol's Covenant forces.
The Wolverine's primary armament is the M260 Multiple Launch Rocket System, a development of the General Support Rocket Systems that have served alongside main battle tanks since the mid-twentieth century. This weapon possesses two pods of Argent V surface-to-air missiles that are located on either side of the driver and gunner seats; the weapon can be upgraded with two additional, smaller pods. These missiles are specialized to target and deliver their warhead to an aircraft with great speed and maneuverability. The missile pods are quite large and can be reloaded via a mechanical system in the Wolverine, which stores a small supply of missiles onboard.
The laser tracking targeting systems and anti-air capabilities of the Wolverine are virtually peerless, but it can also angle its missile pods to launch missiles at ground targets, preferably stationary targets or structures; because of this, Wolverines are sometimes used to provide indirect anti-armor support when main battle tanks are unavailable. Although aircraft pose little threat, the Wolverine is quite vulnerable to ground-based anti-armor weaponry.
The driver has the use of a pivoting XM511 Heavy Grenade Launcher for defense from ground attacks. This weapon is deadly against infantry and quite powerful against light vehicles, but the Wolverine requires combined arms support for defense from heavier targets.
Halo Wars 2
Unlike its Halo Wars counterpart, the Wolverine has no upgrades, instead having the dual launchers by default. The Wolverine can be built at a garage for every UNSC leader. While effective against aircraft, they do poorly against infantry, vehicles, and structures. In Blitz Wolverines cost 40 energy, while Vanguard Wolverines cost 70 energy.
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