Orbital Drop Shock Trooper
7TH Shock Battalion
"One of the most famed and veteran units of the UNSC Marine Corps, the 7th Shock Battalion served in some of the most climatic and legendary battles during the latter part of the Human-Covenant War. The 7th Battalion fought alongside Master Chief Petty Officer John-117 during most of 2552, and into the end of the war in the Spring of 2553. Men and women from this battalion were also some of the first Humans to travel outside of the Milky Way Galaxy, during the Battle of Installation 00.
Some of the most ferocious fighting done by the 7th battalion was done during the First and Second Battle of Earth. Overall, the defense of Earth was one of the largest campaigns the ODST's fought in during the 30+ years of the war."