81st Special Forces Brigade/Regiment

"How do we go?! (Feet first, Sir!!)" -ODST Jeremiah to his Platoon before they drop onto Zeta Halo.
The 81st Regiment is the primary Special Forces unit in the 92nd Spec Ops Division.
The 89th Shock Troopers Battalion is one of the 3 Battalions in the 81st Spec Forces Regiment.
== 89th Shock Troopers Battalion ==
The 89th Battalion is one of the Battalions that has been deployed in every battle from the end of The Fall of Reach, to the Human-Banished War. They have members that range from Infantry, Air Assault, Space Rescue, to Air Force, and Intelligence.
The Chimera Mk. 10 Battle Suit was a prototype only to be used 5 times in battle. It was mainly used by the 89th Shock Troopers Battalion. It was also used by the 84th Special Operations Battalion in the Battle of Kender Gulch. 
The 89th was a ODST-based Battalion containing 20 SPARTANs, 750 ODST, and 30 ONI Agents. Their motto is "Just gimme a bullet, I'll make it count."
== 84th Special Operations Battalion ==
The 84th was a mainly SPARTAN-III based Battalion, until most of them were killed during suicide missions. It was a Headhunter-like Battalion, as all the SPARTAN-IIIs and ODST were issued SPI looking armor.