Indigo Team

"There's rumours among the Marines and Soldiers about a team of Spartans sent where they are needed most. Behind enemy lines, in battles that are unwinnable. So secret, their movements are kept secret even from ONI. So skilled that their existence is hidden even from their fellow Spartans. We aren't them - we're the ones they call in when they're in trouble."

- Andrew-306

Given the secretive nature of the Office of Naval Intelligence, and the confusing records of the Spartan-II Program, it is difficult to tally the total number of Spartans in service. Official records indicate that 75 were forcibly recruited in 2517, and that of them only 33 survived augmentation. Since then, until 2552, officially, only four Spartans have become "MIA," one retiring, and another too wounded to continue serving. However, there are discrepancies - Indigo Team is one of them.

While a few among Section Zero believe Indigo to belong to the little-known Class II of the Spartan II Program, Indigo were actually among the original recruits, and were trained alongside their fellow conscripted supersoldier candidates. During the augmentation process, they were transferred to Naval Special Warfare, separate from Naval Special Weapons, field testing much of the new technology developed for use by combat personnel. For the most part, their existence has been classified at the highest level, only deployed in combat theatres where the other Spartans are elsewhere. After the fall of Reach, Indigo Team were some of the few surviving Spartan II's to survive, and as such their presence could no longer be kept a top secret.