As a Heavy FAC, Atomic Dog was a third larger than a standard FAC with a crew of three hundred and heavier armament.
Atomic Dog survived the Aurelian Attack at Charlemagne and fled with the other surviving ships to rendezvous with the Third Exploring Expedition at Parallax Colony. It became part of the Fleet of Orion and fought in the Battle of Terrastar where it contributed to the destruction of three Aurelian Super-Destroyers. Atomic Dog was one of a handful of combat ships that survived the Battle of Terrastar.
Atomic Dog was commanded by of Commander Franklin Cross and Executive Officer Elliott Lattermilk and had a crew complement of 305.