UNSC Hostage Activity Group

The UNSC Hostage Activity Group (HAG) is a military counterterrorism team that is a special missions detachment of the UNSC Marine Orbital Incursion Group (MARORBGRU) and the UNSC Progressive Warfare Division (PROGWARDIV), under the specific command of UNSC Special Operations Command Sagittarius (UNSCSOCSAG), a regional command of the UNSC Special Operations Command.
The Hostage Activity Group is typically active in the "aggressive terminal" phase of a hostage crisis; that is, in the terminating phase of a crisis where aggressive force has been authorized as the only possible conclusion. After the conclusion of the Human-Covenant War, a HAG platoon would be dispatched to Bifröst, Alpha Corvi System to resolve a hostage crisis involving an HRV Armament Company executive. However, the negotiation of the situation by SPARTAN-091 would render HAG's prepared assault conclusion unnecessary. 
==Behind the Scenes==
*The UNSC Hostage Activity Group is named after the real-world American FBI Hostage Rescue Team.