Team X-ray
From Halopedia, the Halo wiki
Template:Infobox Military Unit Team X-Ray was a team in the Spartan-III Program.[1]
They went to exercise/train near Zone 67 on Onyx where they disappeared after having reported sightings of a "floating eye".[1] It was discovered years later by Kurt, the surviving Spartan-IIs and IIIs, Catherine Halsey and Franklin Mendez that they had encountered the Onyx Sentinels.