UNSC Organisational Structure

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The United Nations Space Command armed forces are organised into fighting forces of manageable sizes of manpower, for use in combat operations. Additionally, the UNSC armed forces have a rank structure divided into several mainline branches of service. These being the Navy, Marine Corps, Army, and Air Force. These are predominantly derived from the systems which were employed by the United States armed forces of the 20th and 21st centuries.
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Table of Contents
#Overview
#NAVCOM
##UNSC Naval Command
##Navy
##Office of Naval Intelligence
#UNICOM
##UNSC Unified Ground Command
##UNSC Army
##UNSC Air Force
##UNSC Marine Corps
== Overview ==
The UNSC's ranking structure is superficially similar to those which were employed by 21st century militaries, with the primary inspirational source in the United States armed forces. Unlike the military forces of the turn of the millennia, the UNSC employs two main schemes dividing it's ranking personnel into two organisational umbrellas; NAVCOM, for the organisations which fall within the Naval Command. These include the Navy and the Office of Naval Intelligence. UNICOM, for the organisations which fall within the Unified Ground Command, which includes the Army, Air Force, and Marine Corps. UNSC ranks across these commands, can be broadly categorised into groupings as follows:
*Enlisted: The Enlisted are the regular personnel who perform the various "front line" duties. This includes the standard infantry personnel, but also includes personnel such as logistics operators, pilots, and corpsman.
*Non-commissioned Officers: The Non-commissioned Officers, also referred to as "NCOs" or "Non-Coms", are enlisted personnel which fill intermediary leadership and administrative roles. Their roles and responsibilities will vary by service branch, occupational specialty, and duty station. Much like the 21st century United States, the UNSC relies heavily on it's NCOs, and often share many of their responsibilities and roles with commissioned officers.
*Warrant Officers: The Warrant Officers are the technical specialists, and the experts on a given subject matter, which have been granted an officer's commission, often in recognition of their expertise, but they can also be commissioned for their leadership abilities, or proving themselves either in the line of duty, or by a significant accomplishment. They take the officer's oath of service, and are rated above the enlisted and non-commissioned officers, but are subordinate to full commissioned officers. The UNSC Air Force does not utilise Warrant Officers, and they are rarely utilised by the UNSC Marine Corps.
*Officers: The Officers of the UNSC are fully commissioned personnel. This means that their authority is granted via formal legal document, which is issued on the authority of the UEG President. These commissions are awarded after the completion of studies and training at an Officer Candidate School (OCS), and after taking their oath of service.
== NAVCOM ==
=== UNSC Naval Command ===
The UNSC's Naval Command personnel use rank titles and pay grades which are distinct from the other branches as seen in UNICOM. Naval ranks and terminology dates back to through history to the eras of ships sailing upon the high sighs of Earth, before humanity took to the stars. These ranks within the Naval Command are used by both the Navy and ONI.
==== Enlisted Ranks ====
Rank Code 	E-1 	E-2 	E-3 	E-4 	E-5 	E-6 	E-7 	E-8 	E-9
Rank 	Crewman Recruit (CR) 	Crewman Apprentice (CA) 	Crewman (CR)	Petty Officer Third Class (PO3)	Petty Officer Second Class (PO2)	Petty Officer First Class (PO1)	Chief Petty Officer (CPO)	Senior Chief Petty Officer (SCPO) 	Master Chief Petty Officer (MCPO)
Typical Responsibilities	No command authority/Boot camp and training school	Initial fleet assignment	Work crew 	Work party lead 	Compartment supervisor 	Work division supervisor 	Deck supervisor 	Oversight of ship enlisted personnel	Fleet administration or HIGHCOM staff
==== Officer Ranks ====
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) 	Ensign (ENS) 	Lieutenant Junior Grade (LTJG)	Lieutenant (LT) 	Lieutenant Commander (LCDR) 	Commander (CDR) 	Captain (CAPT) 	Rear Admiral (RADM) 	Vice Admiral (VADM) 	Admiral (ADM)	Fleet Admiral (FADM)
Typical Responsibilities	No command authority	Resident technical expert	Command advisor or captain of utility ship	Initial officer posting	Command of staff section 	Command of work division or Captain of support ship	First officer on small warship or command of ship department	HIGHCOM staff or captain of small warship	Captain of line warship or installation	Battle group commander	Command of Sector fleet or academy	HIGHCOM staff	Fleet commander
==== Organisation ====
Name 	No. of personnel 	No. of subordinate units 	Unit leader 	Identification Scheme
UNSC Naval Command	Unknown large number	Fleet Command (All sectors)	Fleet Admiral/Chief of Naval Operations	N/A
Sector 	Unknown large number	Several fleets 	Vice Admiral or Admiral 	Designated with a number (written alphabetically) at the end. (eg- FLEETCOM Sector One)
Fleet 	~750-???? 	3-152 ships 	Commander, Captain, or Rear Admiral 	Designated with a number (written alphabetically) at the begining for expedition fleets, defense fleets are named with the region they are defending. (eg- Seventh Fleet, Epsilon Eridani Fleet)
Battle Group 	~750-???? 	3-48 ships 	Commander, Captain, or Rear Admiral 	Given a number (written numerically) at the end or a name (eg- Battle Group 4, Battle Group Leviathan)
Line Warship 	~2200-???? 	Several ship departments 	Captain 	N/A
Small Warship 	~250-???? 	Several ship departments 	Commander 	N/A
Ship department 	Unknown small number	Several work divisions 	Lieutenant Commander 	N/A
Work division 	Unknown small number	Several staff sections 	Lieutenant 	N/A
Staff section 	Unknown small number	Several crewmen 	Lieutenant Junior Grade 	N/A
=== UNSC Navy ===
The UNSC Navy (UNSCN) is the primary branch of the United Nations Space Command NAVCOM. As a branch of the UNSC armed forces, the Navy is responsible for naval warfare and operations, though they can be found operating in terrestrial oceans with their maritime arm. The roles of the Navy include everything from space warfare, orbital bombardment, deployment of atmospheric and space fighters, and the delivery of UNICOM personnel into ground theatres.
The UNSC Navy's primary mission parameters are to "Provide naval forces to ensure freedom of access for aerospace and terrestrial operations." Specifically, this means that the Navy is responsible for the engagement, destruction, and suppression of enemy space combatants, particularly those which are attempting to interfere with UEG commercial and terrestrial holdings. The Navy's collateral functions also include the following:
*The interstellar transportation of the UNSC's various assets.
*The development of doctrine, procedures, and equipment which are of common interest to the UNSC Air Force and Marine Corps.
*Providing the forces for joint aerospace/terrestrial operations, in accordance with prescribed UNSC doctrine.
*The coordination of UEG civil agencies to oversee the establishment and maintenance of naval depots, orbital yards, and other infrastructure.
*The establishment of an emergency military government to oversee authority of designated crisis zones.
=== Office of Naval Intelligence ===
The Office of Naval Intelligence (ONI) is the intelligence branch of the UNSC Navy. Overtly, the agency is merely an information gathering and analysis division of the UNSC's Naval Command. Covertly, ONI's operations are far broader than mere intelligence gathering and analysis. However, they are are widely known for their role in the acquisition and leveraging of the military's intelligence. Regarded with suspicion for their use of subterfuge, deception, and manipulation. Ostensibly in defense of humanity, and they frequently use this as an excuse to accomplish their goals. Additionally, the Office of Naval Intelligence secretly oversees numerous special projects, such as the SPARTAN programs, Project: MJOLNIR, and more shadowy actions, such as assassinations against high priority targets.
== UNICOM ==
=== UNSC Unified Ground Command ===
UNSC ground forces rely on little administrative overhead and bureaucracy thanks to artificial intelligences and automated services, which handle the majority of routine paperwork and coordination. The UNSC's standards of training and high "tooth to tail" ratio of fighting troops to support personnel also allow senior enlisted and junior officers to be given much more responsibility and command authority than what was historically possible. Some UNSC Army and Air Force personnel additionally make use of ranks and/ or roles that do not fit into the UNICOM system of organisation.
The UNSC's Unified Ground Command personnel form the bulk of the UNSC's armed forces, and such, rely on artificial intelligences and automated services to handle the majority of overhead administration, bureaucracy, through the oversight of the routine paperwork and coordination efforts of the command. This enables UNICOM personnel to focus on strategy, and overseeing combat operations. Due to a longstanding standard of excellent training, and high "tooth to tail" ratio from the fighting troops to the support personnel, enables senior enlisted and junior officers the opportunities to be given much more responsibility, autonomy, and command authority, than what was historically feasible. Additionally, some UNSC Army and Air Force personnel make use of ranks/roles which do not fit within the UNICOM's typical systems of organisation.
==== Enlisted Ranks ====
Rank code	E-1 	E-2 	E-3 	E-4 	E-5 	E-6 	E-7 	E-8	E-9 	
Rank 	Private (PVT)	Private, First Class (PFC)	Lance Corporal (LCPL)	Corporal (CPL)	Sergeant (SGT)	Staff Sergeant (SSGT)	Gunnery Sergeant (GYSGT)	
{|	Master Sergeant (MSGT)	First Sergeant (1SGT)
==== Officer Ranks ====
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	Central Command commander 	UNSC High Command senior staff
==== Organisation ====
Name 	No. of personnel	No. of subordinate units 	Unit leader 	Identification Scheme
Marine Expeditionary Force	40,000-50,000 	1 Infantry Division, 1 Air Wing (Major Gen), 1 Logistics Group (Brigadier Gen), 1 Headquarters Element	Lieutenant General 	Designated with a number, all Expeditionary Forces in the UNSC are on the same number system. (eg- 9th Marine Expeditionary Force)
Division 	20,000 	3 Infantry Regiments + 1 Artillery Regiment, 1 Headquarters Battalion, 1 Tank Battalion
1 Reconnaissance Battalion, 1 Combat Engineer Battalion	Major General 	Designated with a number, all Divisions in the UNSC are on the same number system. (eg- 21st Marine Division, 105th ODST Division)
Brigade 	5,000 	Unknown 	Brigadier General/Colonel 	Designated with a number, all Brigades in the UNSC are on the same number system. (eg- 34th Infantry Brigade, 8th Armored Brigade)
Regiment 	3,200 	3 Infantry Battalions, 1 Headquarters and Service Company 	Colonel 	Designated with a number, all Regiments in the UNSC are on the same number system. (eg- 77th Marine Regiment, 506th Tank Regiment)
Battalion 	800-1,000 	3 Rifle Companies, 1 Weapons Company, 1 Headquarters and Service Company 	Major-Lieutenant Colonel 	Receive a numbering within the Regiment, or an independent number for special forces units (eg- 7th ODST Battalion)
Company 	130-250 	3-6 Platoons 	Captain-First Lieutenant 	Designated with a letter from the Phonetic Alphabet. (eg- Tango Company, Alpha Company)
Platoon 	25-48 	3- 4 Squads 	Gunnery Sergeant, Second Lieutenant, or First Lieutenant	Numbered within a Company (eg- First Platoon)
Combat Team 	10-12 	2 Squads 	Sergeant or Staff Sergeant 	Designated within Platoon by letter in Phonetic Alphabet
Squad 	5-8 	3 Fireteams 	Corporal-Staff Sergeant 	Numbered (using the word, not the number) within a Platoon. (eg- First Squad, Second Squad)
Fireteam 	2-5 	N/A 	Corporal-Staff Sergeant 	Designated with a letter from the phonetic alphabet within a squad, (eg- Alpha Team, Fireteam Charlie)
=== UNSC Army ===
=== UNSC Air Force ===
=== UNSC Marine Corps ===
== Spartan Operations ==
== Trivia ==
== Gallery ==
Category:United Nations Space Command