Halo Alpha
Halo Alpha


Blue Team arrives at the Forerunner world Genesis, where they discover the true reason for the Guardian's activation.

Reunion is the seventh campaign mission in Halo 5: Guardians and the second mission in which Blue Team is playable.


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Blue Team fights their way through Covenant and Promethean forces to retrieve Cortana


This section requires expansion.


UNSC Infinity is floating through space. Three Pelicans are flying down its length.

  • Lasky: There have been five more events following Meridian. That's eleven colonies. I need a means to stop this. Now.

Scene shifts to the inside of Infinity's bridge. Lasky and Locke walk towards a terminal that Dr. Halsey is studying.

  • Locke: The Warden confirmed Dr. Halsey's theory: Cortana is activating the Guardians.
  • Dr. Halsey: But not this one. Not yet. Sunaion. A pre-Covenant religious site on Sanghelios.
  • Lasky: There's a Guardian on the Elite homeworld?
  • Palmer: If we get a team on the ground, we can access that Guardian.
  • Lasky: Sanghelios is off limits. The brass want nothing to do with the Arbiter's war.


Art Name Description Value
N/A Together Again Complete mission 7 10G
H5G AchievementArt TakeaHike Take a Hike Traverse the canyon in Reunion without a Phaeton on Heroic difficulty. 10G
N/A No Witnesses Destroy the Phantom at the Covenant camp in Reunion on Heroic difficulty. 10