S4/BRT/1/7

S4/BRT/1/7 is a UNSC Marine Corps military unit.

Background
They fought in the Second Battle of Earth, the Battle of Voi, and the Battle of Installation 00.

Speculation
It is possible the "S" stands for the Company, Sierra. The "4" may be fourth Platoon of Sierra Company, or fourth Battalion that the company is part of. "BRT" could stand for Brigade Recon Team, which would be the infantry element of a reinforced Marine regiment, or Marine expeditionary brigade. The 1/7 could either be 1st Battalion, 7th Marine Regiment, or 1st Regiment, 7th Division. This is just simply conjecture and should not be taken as pure fact.

Related Links

 * UNSC Marine Corps
 * UNSC Military Units