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Fireteam Osiris is a team of Spartan-IV's lead by Jameson Locke to hunt down Blue Team.[1]


In 2558,[2] Osiris was tasked with tracking down Dr. Catherine Halsey, and potentially eliminating Jul 'Mdama, at Kamchatka.[3]

Later, Osiris was tasked by the Office of Naval Intelligence with hunting down an AWOL Blue Team. They began their search by talking to the Arbiter Thel 'Vadam.[4] At some point while with the Arbiter, Osiris participated in the Battle of Sunaion.[5]





  1. 1.0 1.1 1.2 1.3 1.4 GameInformer Issue 267, July 2015
  2. Gameinformer: The Halo 5: Guardians Cover Story
  3. Youtube: Halo 5: Guardians - Opening Cinematic
  4. Halo 2: Anniversary level The Heretic
  5. Youtube - Halo 5 E3 Campaign Demo

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