Developed by Chalybs Defense solutions, the same manufacturer as the M808 Scorpion Main Battle Tank, the M850 Grizzly is far larger, has heavier armor, and is equipped with significantly more firepower. Unlike the Scorpion, which was already over 300 years old in the 2550's, the Grizzly was built to deal with alien threats. One of the Grizzly's most noticable features are its twin main guns, each chambered to fire 120mm rounds. These guns can fire independently from one another, but most commonly fire in a linked, staggered configuration. The first round is a Shield Buster round, which emits a localized electro-magnetic pulse on impact. This temporarily disrupts shield generators, dropping the shield membrane, and leaving the armor underneath exposed to the second round, which is almost always a High Explosive Anti-Tank round. Depending on the model, supplementing the main guns are either 1 or 2 coaxial M247T machine guns that can be effective against lightly armored targets. Later variants of the Grizzly mount a pair of missile batteries to the rear of the turret for aerial defense, while earlier variants use a unique type of round called the S-1 Canister Shell. Due to the Grizzly's additional titanium and ceramic armor, the vehicle can withstand far more punishment from Covenant plasma rounds, but at a cost. This is a very heavy vehicle tipping the scales at 71.4 metric tons, so each Grizzly has a 5th track under the rear of the hull for better weight distribution.

Controls:

Pitch: Drive Forward/Reverse

Roll: Turn Left/Right

VTOL: Vertical Turret Drive

Trim: Horizontal Turret Drive