How to unlock and complete the Destiny 2 Oblation Exotic Mission for Cull's Shadow

Completing the Destiny 2 Oblation mission is how you get the new Cull’s Shadow weapon, but it’s not a quest that’s simply given to you. In fact, unlocking the Oblation mission is arguably the hardest and potentially most time-consuming part of getting Cull’s Shadow, as you need to investigate Hive objects all over the Moon first. Only after that can you begin the mission, which is thankfully quite straightforward. To help you get Cull’s Shadow in Destiny 2, here’s a full guide on how to unlock and complete Oblation.

How to unlock Destiny 2 Oblation

Before getting started with unlocking the Oblation mission in Destiny 2, you must have one of the four Weapons of Sorrow equipped – those are Thorn, Osteo Striga, Touch of Malice, and Necrochasm, with Thorn being the easiest to obtain as any player can get it from the Monument to Lost Light provided they have enough Glimmer and one Exotic Cipher.

So, with one of the above weapons in hand, here’s what you need to do to unlock Oblation:

1. Play through the Scarlet Keep Strike on the Moon as normal until you reach the Hashladun boss fight at the end. Draw your Weapon of Sorrow and shoot the three green Hive symbols around the arena to lower the main gate.
2. Defeat Hashladun, then go through the gate and into the room on the right where you’ll find a Hive crystal. Follow the button prompt to investigate it, which will reveal several locations on the Moon map you need to search.

3. Head to each marked location and use the Soulfire Network Frequency indicator to home in on a dead Syndicate trooper that you need to examine. This will then give you a vague clue to a different location, with a trail of dead Syndicate troopers roughly guiding you. Here’s where to look for each location:

• Archer’s Line: The trooper is in the crater in the middle of this area. Afterwards, head to the Shrine of Oryx via the Hive doorway on the east side of the area. You’ll reach the Hall of Wisdom first, at which point you need to take the first left to find the tunnel to the Shrine of Oryx.
• Anchor of Light: Find the dead trooper on top of a small building that’s part of the colony structure in the north of the area. Next, go down to the Temple of Crota using the path in the east.
• Hellmouth: Go to the main Hellmouth entrance to find the dead trooper, then descend to the Chamber of Night. To get there, follow the downward path and then bear right once you reach the Circle of Bones. Pass through the door to reach the World’s Grave, then carry on down the dark tunnel to reach the Chamber of Night.
• Sorrow’s Harbor: The dead trooper is on a raised area on the northern edge of the location and west of the bridge into the Scarlet Keep. After examining, you’ll be directed to the K1 Revelations Lost Sector.

4. Upon reaching the ends of these four trails, you’ll find a small force of Cabal soldiers (or the Lost Sector boss in the case of K1 Revelations) guarding a doorway locked by Hive symbol seals. Draw your Weapon of Sorrow and green Hive symbols will appear in the surrounding area, as in the Scarlet Keep Strike.
5. Following the door seal symbols from top to bottom, shoot the corresponding green symbols with your Weapon of Sorrow to unseal the door and reveal another Hive crystal to investigate.

6. Head back to Sorrow’s Harbor and make your way inside the tunnel that runs under the bridge into the Scarlet Keep, which can be accessed below the east side of the bridge. In this tunnel you’ll find a door from which you can begin the Oblation: Bloodline Exotic Mission, although you should now be able to launch it from the Moon map.