Oryx's Dreadnaught has been outfitted with ... Return to the slab in Eris' Apartment to claim Barrow-Dyad's second Exotic quest, which is tied to unlocking this weapon's additional crafting ...

Formerly, we thought that you'd need to reload it until you spawn at the Trenchway or Hall of Souls, but it seems that you can start the Exotic quest from any landing zone in the Nether ...

Bungie dropped this new Exotic quest chain in the second week of Heresy ... The Blight in the Hall of Souls near the Court of Oryx is probably one of the most documented entry points.