M850 Grizzly

Grizzly "The heavily armored Scorpion tank inflicts massive damage with its primary cannon, but struggles to track fast-moving targets. One of the special Corps upgrades, the Grizzly, adds a double-barreled cannon and a flamethrower that can roast surrounding troops."

- GamePro, July Edition

The Grizzly is a variant of the M808B Main Battle Tank. It is set to appear in Halo Wars, accessed by upgrading the Scorpion, and usable only by the UNSC "Corps" Faction, at least in early builds. As of the current build, it is obtainable only with John Forge as the UNSC player's hero unit.

Overview
The Grizzly is a variant of the Scorpion, used in combat only by the UNSC Marine Corps. Instead of the standard Scorpion armament (a one-barreled cannon), it's armed with a double-barreled cannon and a deadly flamethrower.