Military acronyms

This is a list of acronyms used in the UNSC armed forces. Acronyms are commonly used throughout the UNSC in both official and unofficial capacity to more quickly communicate situations or names of various military equipment, which may have long, official names that slow down communication.

Official acronyms

 * AAA - Anti-Aircraft Artillery
 * AI - Artificial Intelligence
 * AP - Armor Piercing
 * APC - Armored Personnel Carrier
 * AR - Assault Rifle
 * AWOL - Absent Without Official Leave
 * BR - Battle Rifle
 * CA - Civil Affairs
 * CMDR - Commander
 * CO - Commanding Officer
 * COM - Communications
 * CP - Command Post
 * CPL - Corporal
 * CPO - Chief Petty Officer
 * CPT - Captain
 * CMT - Colonial Militia Training
 * CNI - Command Neural Interface
 * DCS - UNSC Department of Commercial Shipping
 * EMP - Electromagnetic Pulse
 * ENGCORP - UNSC Engineering Corps
 * ETA - Estimated Time of Arrival
 * FLEETCOM - UNSC Fleet Command
 * HAZMAT - Hazardous Materials
 * HE - High Explosive
 * HEAT - High Explosive Anti-Tank
 * HEV - Human Entry Vehicle
 * HIGHCOM - UNSC High Command
 * HUD - Heads Up Display
 * IFF - Identification Friend or Foe tag
 * KIA - Killed in Action
 * LAAG - Light Anti-Aircraft Gun
 * LAAV - Light Anti-Armor Vehicle
 * LCDR - Lieutenant Commander
 * LIC - License
 * LRV - Light Reconnaissance Vehicle
 * LT - Lieutenant
 * LZ - Landing Zone
 * MAC - Magnetic Accelerator Cannon
 * MBT - Main Battle Tank
 * MCPO - Master Chief Petty Officer
 * MEDCORPS - UNSC Medical Corps
 * MIA - Missing in Action
 * MRE - Meal, Ready-to-Eat
 * NAV - Navigation
 * NAVCOM - UNSC Naval Command or Navigation computer
 * NavLogCom - UNSC Navy Logistical Operations Command
 * NavSpecWar - UNSC Navy Special Warfare
 * NCO - Non-Commissioned Officer
 * ODST - Orbital Drop Shock Trooper
 * ONI - the Office of Naval Intelligence
 * PERSCOM - UNSC Personnel Command
 * PFC - Private First Class
 * PT - Physical Training
 * PVT - Private
 * PZ - Pickup Zone
 * REG - Registration
 * RV - Rendezvous<
 * SAM - Surface-to-Air Missile
 * SCPO - Senior Chief Petty Officer
 * SGT - Sergeant
 * SMG - Sub Machine Gun
 * SSEP - Safe Slipsace Entry Point
 * SSM - Surface-to-Surface Missile
 * SSR - Surface-to-Surface Rocket
 * TOC - Tactical Operations Center
 * TT - Troop Transport
 * ULATV - Ultra Light All Terrain Vehicle
 * UNSC - United Nations Space Command
 * UNSCDF - United Nations Space Command Defense Force
 * UNSCMID - UNSC Military Identification Number
 * WIA - Wounded In Action

Unofficial Acronyms

 * ASAP - As Soon as Possible
 * CF - Charlie Foxtrot

List of appearances

 * Halo: Combat Evolved
 * Halo 2
 * Halo 3
 * Halo: Reach
 * Halo: The Fall of Reach
 * Halo: The Flood
 * Halo: First Strike
 * Halo: Ghosts of Onyx
 * Halo: Contact Harvest