i9's ruling (chat 473): hide the old single "Obsidian Sovereign Cuirass" entry in BP_ArmoryHUD's WEAPONS rack; the Obsidian Torso bundle (#424) replaces it. Keep the 3D chest piece on the showcase.
Unofficial fan project. Halo: Reach, Halo: The Master Chief Collection and all game assets are © Microsoft / 343 Industries. Noble ships no game files: it loads haloreach.dll and the user's own maps ...