Three months later, during the Battle of Arcadia, the ship was tasked with retrieving a log buoy dropped by UNSC Spirit of Fire and to avoid combat, as Arcadia was deemed a lost cause. However, in a fit of pride, Hood attempted to take revenge for all the fallen colonies and ordered the crew to attack the CPV-class heavy destroyer Radiant Perception. Roman Blue was outmatched and forced to retreat without retrieving the log, thus leaving no chance of rescue for Spirit of Fire and her crew.
At some time between Arcadia and the end of the war, Roman Blue was disabled and crashed on Eiro in the Ectanus 45 system. The crash site was found in January 2557 by Rion Forge and her team of scavengers.