High Command

HIGHCOM is the highest command of the UNSC. Beneath the Colonial Military Administration, it is ultimately in charge of all personnel, equipment, and facilities used by the UNSC. Top level brass from every branch form the UNSC Security Comittee of HIGHCOM. With headquarters at planets Reach and Earth, HIGHCOM is the equivalent to the modern Pentagon of the United States military. It is the protection for the civilian government, which is apparently the Colonial Administration Authority. HIGHCOM has directed the strategy for the actions of the UNSC since its very beginning. From combating rebel forces, such as the Eridanus Rebels, to the genocidal war against the Covenant, HIGHCOM has been the source of all strategy and information about the war.

HIGHCOM Branches
HIGHCOM is in charge of all branches of the UNSC. A few of those brances include:

Administrative

 * Personnel Command (PERSCOM): The branch of the UNSC that directs the promotions, transferrs, recruitment, and retirement of all UNSC personnel.
 * Navigation Command (NAVCOM): Dictates protocols for navigation of human craft.
 * UNSC Astrophysics: Documents stellar phonomena.

Navy

 * Fleet Command (FLEETCOM): The UNSC Navy, it directs all vessels and naval stations throughout UNSC space.
 * Special Operations Command: Parent branch of ONI
 * Office of Naval Intelligence (ONI): The intelligence gathering branch of the UNSC. ONI is responsible for all special weapons projects.
 * Naval Special Warfare: Branch of ONI the Spartans belong to.
 * United Nations Space Command Defense Force (UNSCDF): Deals exclusively with the defense of Inner Colonies of the UNSC
 * Signal Corps: Portion of the Navy that works to confuse the invading Covenant forces.

Marine

 * United Nations Space Command Marine Corps (UNSCMC): The UNSC Marine Corps, it directs all actions by ground troops and infantry of the UNSC. This branch is further split between various military units
 * Orbital Drop Shock Troopers
 * Regular Marines

HIGHCOM Resources
Bases


 * HighCom Facility Bravo-6
 * HighCom Armory Omega