Flood containment Fireteam

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In the Halo 3 multiplayer map Cold Storage, a Spartan-II, clad in the HIVEMIND-class Mjolnir variant, is wielding an M90A shotgun and throwing a Anskum-pattern plasma grenade. Screenshot from Halo: The Master Chief Collection.
The Hivemind suite of MJOLNIR Powered Assault Armor (GEN2) was developed and tested aboard ANVIL Station for use by Spartans tasked in combating Flood outbreaks.[1][2]

Flood containment Fireteams are an all-volunteer force of specialised SPARTAN-IV fireteams employed for containment of the Flood parasite. These units have seen action in the Post-Covenant War conflicts, having executed their job successfully enough that most people haven't heard of a Flood outbreak in the interim. Should a Spartan become infected with the Flood, code CORRUPTER is declared and weapons of mass destruction are deployed to contain the threat.[3] Such infected Spartans have been simulated in War Games.[4][5] The Flood containment fireteams have employed specialised anti-Flood equipment such as the Hazops Cyclops or the Hivemind and OSTEO armors.[1][2] Several VISR variants developed for the GEN2 platform were created with the Flood's potential infection in mind, with eponymously-named Flood visor being designed specifically for such teams, while the Gallows visor equips the helmet with failsafe charges for use in the event of a suit compromise.[6][7][8]

Flood containment teams have been deployed in live operations, including at least one event at Site 22 in which the team in question, Fireteam Leviathan, was compromised and the necessary CORRUPTER and UPSILON protocols declared and enacted by the team's support ship, UNSC Saturn.[9][10]

List of appearances[edit]


  1. ^ a b Halo 3, Armory: Hivemind Description "ANVIL Station is the ideal equipment testing environment for Spartans tasked with eliminating localized Flood infestations."
  2. ^ a b Halo Waypoint, Canon Fodder 142: System Shocks (Retrieved on Jun 30, 2023) [archive]
  3. ^ Halo: Official Spartan Field Manual, page 172-175
  4. ^ Halo 4, gamemode Flood
  5. ^ Halo 2: Anniversary, gamemode Infection
  6. ^ Halo 5: Guardians, Armory: Flood visor description "As the name implies, the Flood VISR is built specifically for Spartan assessment and containment teams deployed to Forerunner sites that may house samples of the all-devouring parasite."
  7. ^ Halo 5: Guardians, Armory: Gallows visor description "Made for special forward observation teams operating in quarantine zones, failsafe charges in the Gallows VISR will destroy the helmet (and everything in it) in case of compromise."
  8. ^ Halo Waypoint, Canon Fodder - Of Protocols and Prisons (Retrieved on Mar 7, 2022) [archive]
  9. ^ Halo Waypoint, Infection Intel (Retrieved on Oct 11, 2023) [local archive] [external archive]
  10. ^ Saturn Devouring His Son