Cryo B

Cryo B was a cryogenic stasis chamber onboard the Halcyon class cruiser UNSC Pillar of Autumn. John-117 was placed here during the trip from Reach to Halo. Most of the cryo-chambers seem to have been cleared out of the section, though, as only nine of them were there when they found Installation 04.

Cryo B has two sections, seperated by several corridors at the bottom, and the Main terminal at the top.

In the Pillar of Autumn, The Master Chief can only go in the part in which he was revived from along with the Terminal. Whilst he can only enter the other side aswell as the Terminal in The Maw.

It is likely the other side was used for the "weapons diagnostics" mentioned in the begining of PoA.