The Brotherhood

The Brotherhood is a terror group with its only goal is to attack and destroy the UNSC. They are all former UNSC ODST soldiers, and are lead by an unknown leader known only as Brother Chen.

History
Created at 10:00 am August 21st, 2553, they used a serum to brainwash and reprogram UNSC ODST squadrons, and they did this until they had over 120 ODST soldiers. Their first mission they call "Retrival" they attacked an UNSC Embassy at Dosiac at the Brute Homeworld after the Covenant War. When they attacked they used Brute weaponry to make it appear to the UNSC Rescue teams like brutes attacked even went to the lengths of reprogramming the video logs to where the ODST's looked like Brute's. This almost sparked an another war with the brutes however the Brutes on watch were killed. And Brutes wouldn't kill their own just to kill each other.

Operation: Tongue in Cheek
This military action against UNSC Marine 453rd Brigade was to find and exterminate them, however this mission was almost a diaster however they suceeded with marginal results. They planted bombs all over the complex and detonated them while everyone was sleeping or in the recreation room. The only 2 Brotherhood troops that died was still in the blast radius of the bombs. UNSC Marines: 1,000 Brotherhood: 2