25th Marine Expeditionary Brigade

- 25th motto
Created after the great war, this unit act as a heavy brigade. It is on of the 2 sub unit of the UNSC 8th Marines Expeditionary Force of the UNSC Marines Corps SOCOM. It is mostly complex to find it primary role, this include recoon, guerrilla, serch and rescue, line enfoncer and special operation. 
==345th German Armored regiment==
Composing the main force of the Brigade the regiment is composed of about 5,000 marines scorpions and warthogs. the home base of the regiment is in the UNSC base of Ramstein.
==226th Infantry Battalion Excalibur==
The 226th was the smallest subunit of the 25th brigade containning about 600 men this unit serve as a logistic support unit in combat situation. This unit is in under the command of Steve Daniel Huang, Senior. The home base is at Sigma Octanus.
==Royal 22e Régiment==
This unit, an infantry regiment contain about 4,010 men where almost every marines speak French. The unit nickname is The Van Doos they also part of the UNSC Special operation corp it also contain 2 machanized battalion.
==1st Special Service Force==
This unit was the last to join the Brigade. Under the direct commande of Colonel Genevieve Tanner it contain only ODST. It was one of the best unit in the Marine corps. It was the specialized unit of the Brigade. Commonly know has the devil's brigade the 1st special service force closely work with the spartan team. The 1SSF is made only but ODST.