Operation: BLUE MOON

Operation: BLUE MOON was a decisive strike against Insurrectionist forces on the backwater planet Scion, a sparsely-populated world on which rebel activity went undetected by the UNSC for many years. The ONI dispatched SPARTAN-B312 to neutralize a facility dubbed Foxtrot-7; the facility was in fact a military complex in which child soldiers, mostly orphans, were undergoing training in special warfare not unlike the Spartans had. B312 accomplished her objective, killing all personnel and razing the complex, but later came to loathe her memories of the incident. The site was "cleaned up" by the ONI, leaving no evidence that the facility had ever existed.

The ONI never acknowledged whether or not the Insurrectionists responsible for the training of the child soldiers knew anything of the SPARTAN-II or SPARTAN-III programs, despite the rebel program's similarities.