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Choir of One is an Exotic weapon you may acquire through the Encore mission inDestiny 2’sEchoes season. This weapon is effectively a Wyvern cannon turned into an Auto Rifle, firing multiple projectiles that detonate on impact. It’s a powerhouse in PvE, but you’ll need to unlock all of its intrinsic upgrades and Catalyst options to make the most of it.
These upgrades come from hidden chests found in the Encore Exotic mission. Most hidden chests unlock some sort of intrinsic upgrade or a new Catalyst perk. Each upgrade can be applied to the gun in the Enclave in Savathun’s Throne World, allowing you to craft the perfect Choir of One for your build. Here is where you can find every hidden chest in Destiny 2’s Encore mission.
Updated June 05, 2025, by Charles Burgar:The final pair of hidden chests in Encore are now available to claim, awarding you with the last set of Intrinsic upgrades for Choir of One as well as the Onslaught Catalyst. Some entries were also slightly rewritten for clarity.
Hidden Chest Unlock Requirements
Unlike most Exotic missions, there are prerequisites you need to meet before you may find hidden chests inthe Encore mission.You must complete the following for hidden chests to spawn:
Your chosen difficulty doesnotmatter. The hidden chests spawn in both difficulty modes, provided you’ve completed the above prerequisites.
Completing any Encore variantis the first step. Encore has three versions that will presumably rotate each week. You simply need to complete the mission once on any difficulty.
Specimen: NES007is unlocked during the Encore activity and cannot be missed. You’ll receive this quest upon interacting with Maya Sundaresh’s test subjects in the Ishtar lab, just before the Choral Mind boss. You must complete this quest in its entirety. We suggest playing seasonal Battlegrounds orBreach Executableto get this quest done as quickly as possible.
Choir of Onehas a Catalyst quest you can pick up from Banshee-44 upon completing any Encore variant. These quests are time-gated and will slowly unlock as additional Encore variants release. Speak with Banshee-44 in the Tower to pick up a Catalyst quest.Banshee’s quests are retroactive, so don’t worry if you forget to grab one.
Reward
Seasonal Gear
The first hidden chest is found justbefore the first Vex Node puzzle.When you drop into the purple room, you’ll want tohead leftinstead of forward. This will lead you to an isolated chamber surrounded in dormant portals. Interact with the Vex data pillar in the center of the room to start the puzzle.
If the pillar isn’t there for you, it means someone in your fireteam hasn’t completed the chest prerequisites we mentioned earlier.
Your fireteam will seefour Vex cubesappear after a fairly long delay. One of the cubes will have a glowing, smaller cube floating under it.You must destroy the Vex cube with the smaller cube under it.Repeat this process until all four cubes are destroyed. Another set will spawn shortly afterward. Break the second set to spawn the chest.
Command Frame II
You must open Hidden Chest #1 for this chest to appear.
Shortly before you reach the boss encounter with the Subjugator and Tormentor, you’ll enter a spacious room guarded by Shadow Legion and Vex.The room with a Vex Piston should have an active pillar.Interact with the pillar to activate the nearby portal. Travel through the next set of portals until you reach the start of the Encore mission.
This chest requires you toshoot five plates in 90 seconds.The order in which you shoot these plates doesn’t matter; you just need to hit all five.Interacting with the pillar will reveal the general direction of all five plates.Follow the lines projecting out of the pillar to reach each plate.
If you still can’t find them, here are the locations we found the plates. It’s unclear if these spawns are the same for everyone:
Return to the data stream to claim your rewards. If you fail to break all five plates in 90 seconds, some enemies will spawn nearby. Eliminate them and try again.
Command Frame III
In the Vex Piston room right before the Dread boss duo,enter the portal and exit through the portal directly across from you.You’ll end up in a room similar to Hidden Chest #5’s puzzle. This puzzle requires you todestroy the correct cube to make the Minotaur boss vulnerable.As with Hidden Chest #1,the correct cube is denoted by asmaller, white Vex cube floating beside it.
Rending the boss' shield is a straightforward process. The room is broken up into five dormant portals, each with a plate you can activate by depositing a module. These modules drop from slain Minotaur majors. Deposit the module next to a portal to activate it. The catch is thatthese portals link todifferent rooms.Portals are linked in the following way (assume Portal 1 is left):
Start the puzzle by stranding it in the pool of data in front of the Minotaur. Kill the smaller Minotaurs and open the portals.Three cubes will be visible on the second floor. Shoot whichever one has a smaller Vex cube beside it.If done correctly, the Minotaur boss will become vulnerable. Remove 33% of its HP and repeat the process. Completing this puzzle will unlock a new set of intrinsics for Choir of One.
A specimen will also spawn beside the chest (NES008).Be sure to grab it.
Command Frame IV
You arrive at Hidden Chest 4 in the same way as Chests 2-4.Before you reach the dual boss encounter, break the Vex Piston and head through the portal.You’ll want to take theleft portal, the one that leads you outside.
The start of Encore will now have two data pillars you can interact with.Activate the pillar up the starswhere you first start the mission. This will start a90-second time trial where you must kill three Minotaurs.They’re fairly skittish and will teleport at the first sign of trouble, so use a Rocket Launcher or Grenade Launcher to kill them quickly. If you can’t find them, the Minotaurs spawn on the edges of the arena. Kill all three and claim your new intrinsic upgrade.
Subsistence Retrofit
This chest is easy to find but incredibly tricky to unlock.You’ll find this chest in Maya Sundaresh’s lab just before you face the Choral Mind.A data pillar will appear right next to an inactive portal. Interact with the pillar and enter the portal.
Once you enter a series of portals, you’ll end up in a small room surrounded by inactive portals and two Activate Modules. These modules can only be accessed through portals on the ground floor, but the catch is that the portals teleport you somewhere else.Assume Portal #1 is the leftmost portal.Portals are labeled clockwise.
Destroy all five capsules to unlock the Subsistence perk for Choir of One.
Destabilizing Retrofit
In the Concerto variant of Encore, make your way toMaya’s Labjust before you reach the final boss. Activate the pylon, enter the portal, and use theleft portalexit to reach the new puzzle. You should be in a narrow tunnel if you took the correct exit.
This puzzle requires you touncover hidden Vex spheres in an underground labyrinth.It can get fairly confusing down here, so here’s a breakdown of where to go:
After you grab all three spheres, you’ll unlockDestabilizing Roundsfor Choir of One.
Onslaught Retrofit
Make your way toMaya’s Labonce more and interact with the data stream. You’ll want to enter the portal that leads you to asquare-shaped cavernthat houses a small research facility. Kill all the adds in the arena until they stop spawning. You should haveone green Vex Nodeand anArc Cranium cannonwhen you’re done.
Your goal in this puzzle is toricochet your Arc beam across slanted walls while standing in pre-determined locations.It’s the exact same process as the Echoes opening mission and the Breach Executable activity. Here’s the general rundown:
Completing two sides will unveil asecond green nodeyou can deposit, spawning two sets of ricochet walls. Dunk both nodes into adjacent plates and get blasting. Once you’ve cleared all four sets, the research lab will open and spawn the final reward: the Onslaught Catalyst for Choir of One.
Specimen NES009 is found on a table next to the chest.Be sure to grab it.
