Omega Group Wiki
Sergeant Major
Affiliation: Colonial Marine Corps
Higher Rank: Officer Cadet
Lower Rank: Master Sergeant

Sergeant Major is the highest non-commissioned officer rate in the Colonial Marine Corps. Sergeant Major is both a rank and a military "billet". Marine Corps Sergeants Major serve as the senior enlisted Marine in the Corps' units of battalion, squadron or higher echelon, to assist the unit's commander and to handle matters of discipline and morale among the enlisted Marines.

Colonial Marines Enlisted Ranks
Private Private First Class Lance Corporal Corporal Sergeant Staff Sergeant Gunnery Sergeant Master Sergeant Sergeant Major
For the Colonial Marines Officer rank structure click here