Unidentified UNSC stealth ship

An Unidentified stealth ship was being constructed by the UNSC's Office of Naval Intelligence on the UNSC Argent Moon.

Class History
A ship of the class was first constructed in 2557 in the UNSC Argent Moon. It was still aboard when the station was lost with all hands.

The remains of the ship became a battle ground when Blue Team boarded the station in 2558. Blue Team had to pass through it in order to reach the station's data center. The ship was destroyed along with the rest of the Argent Moon sometime later.