Hellion Unit

The 1st Department of Colonial Security Special Mission Unit-Hellion (1st DCSSMU-H)—commonly referred to as Core Five-Hellion, the 1st Special Mission Unit, or simply Hellion and internally nicknamed the "Hellhounds"—is an elite special forces unit under "Core Four", the general term for CINCONI's closest staff. Similar to CINCONI, the unit is actually a part of Core Five, as an unofficial subordinate to the. In reality, however, Hellion takes orders straight from CINCONI, as well as any field commanders given explicit permission by Core Four.

Hellion is rarely seen by anyone other than their targets, and will take on various alternate unit IDs when needed, such as the during Operation: WHITE ELEPHANT, where other ONI and  personnel were present, as well as civilians.