The Delta-Six Division of the Officer of Naval Intelligence is a highly secretive special operations group, using augmented operatives to perform high-stakes missions across UEG space and beyond. Such operations include assassination, counter-insurgency, electronic and cyber warfare, black operations and espionage. To this end, they often act closely with the Clandestine Activities Group and existing Spartan units. D-6 is unique in that rather than small teams or cells of individuals, it utilises exceptionally talented operatives, trained to operate on their own, for long periods of time without contact or support.