Gray Team

Gray Team is a group of Spartan-II supersoldiers of the UNSC Naval Special Warfare Group. It consists of Jai-006, Adriana-111, and Michael-120, the most independent and individualistic of the Spartan-IIs. These qualities were used to create a unit trained to operate for extended periods with minimal supervision and support. In contrast to the typical green coloration used by most Spartan-IIs, Gray Team's Mjolnir armor is painted gray.
Compared to the other Spartan-IIs, such as the conceptually similar Black Team, Gray Team's training placed additional emphasis on individual thought and action. This made them suitable to execute and survive covert missions deep behind enemy lines with no support from friendly units. Their assignments focused on disruption of enemy operations followed by a stealthy extraction.