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Petty Officer First Class

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Petty Officer First Class, abbreviated to PO1, is a enlisted rank in the United Nations Space Command Naval Command (NAVCOM) rank structure; including the UNSC Navy and Office of Naval Intelligence. It is preceded by Petty Officer Second Class, and subordinate to a Chief Petty Officer.^[1]

Overview[edit]

Responsibilities[edit]

Work division supervisor.^[1]

Sources[edit]

^ ^a ^b Halo: Official Spartan Field Manual - PART 8: UNSC ORGANISATION, NAVCOM Ranks, page 140-141

v • d • e UNSC rank structure

Cadet and Warrant Officers	Cadet • Warrant Officer • Chief Warrant Officer

NAVCOM	Enlisted: Crewman Recruit • Crewman Apprentice • Crewman • Petty Officer Third Class • Petty Officer Second Class • Petty Officer First Class • Chief Petty Officer • Senior Chief Petty Officer • Master Chief Petty Officer Officer: Ensign • Lieutenant Junior Grade • Lieutenant • Lieutenant Commander • Commander • Captain • Rear Admiral • Vice Admiral • Admiral • Fleet Admiral

UNICOM	Enlisted: Private • Private First Class • Lance Corporal • Corporal • Sergeant • Staff Sergeant • Gunnery Sergeant • Master Sergeant • First Sergeant • Master Gunnery Sergeant • Sergeant Major Officer: Second Lieutenant • First Lieutenant • Captain • Major • Lieutenant Colonel • Colonel • Brigadier General • Major General • Lieutenant General • General

Spartan Operations	Spartan • Fireteam Leader • Mission Handler • Spartan Commander • Director of Spartan Operations

Other	Airman • Flight Captain • Specialist • CW3

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UNSC ranks