UNSC rank structure/UNICOM

All table information sourced from Halo: Official Spartan Field Manual pages 142-143, except where otherwise noted.

Rank code

E-1

E-2

E-3

E-4

E-5

E-6

E-7

E-8

E-9

Rank

Private (PVT)

Corporal (CPL)

Sergeant (SGT)

Gunnery Sergeant (GYSGT)^{[unicomnote 1]}

Master Sergeant (MSGT)^{[unicomnote 1]}

First Sergeant (1SGT)^{[unicomnote 1]}

Master Gunnery Sergeant (MGSGT)^{[unicomnote 1]}

Typical responsibilities

Boot camp and training school

Initial assignment

Fireteam assistant

Fireteam leader

Squad leader

Assistant platoon leader

Assistant company commander

Division administration, E-8 technical career track

Assistant battalion commander, E-8 command career track

Staff lead, E-9 technical career track

Assistant division commander, E-9 command career track

All table information sourced from Halo: Official Spartan Field Manual pages 142-143, except where otherwise noted.

Rank code	OT	WO-1	WO-2	O-1	O-2	O-3	O-4	O-5	O-6	O-7	O-8	O-9	O-10
Rank	Cadet (CDT)	Warrant Officer (WO)	Chief Warrant Officer (WO-2)	Second Lieutenant (2LT)	First Lieutenant (1LT)	Captain (CPT)	Major (MAJ)	Lieutenant Colonel (LTCOL)	Colonel (COL)	Brigadier General (BGEN)	Major General (MGEN)	Lieutenant General (LTGEN)	General (GEN)
Typical responsibilities	No command authority	Crew chief or Army pilot	Senior subject matter expert	Platoon commander	Company executive officer	Company commander	Battalion executive officer	Battalion commander	Brigade commander	Division commander	Task Force commander	CENTCOM commander	HIGHCOM senior staff

^ ^a ^b ^c ^d Master Gunnery Sergeants can also be referred to informally as "Master Guns", while Master Sergeants in the Army and Marine Corps may be referred to as "Top".

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