A Rising Chorus Act 3 Step 7: How to Finally Beat the Nes0 Core and Finish the Quest

A Rising Chorus Act 3 Step 7: How to Finally Beat the Nes0 Core and Finish the Quest

You've been grinding through Nessus for weeks. The Vex are acting weirder than usual, the soil is turning into literal data chips, and Failsafe is oscillating between helpful AI and a total existential crisis. Now, you’re staring at the quest log for A Rising Chorus Act 3 Step 7, wondering why the waypoint feels like it’s leading you in circles. It’s frustrating. Destiny 2 is famous for these mid-quest lulls where the instructions get a bit... vague.

Honestly, it’s about the "Encore" exotic mission.

By this point in the seasonal arc, the narrative tension is peaking. Maya Sundaresh—or at least the version of her that’s currently rewriting Vex history—is making her move. Step 7 is the pivot point. It’s where the busywork ends and the actual high-stakes combat begins. If you’re stuck, it’s likely because the transition between the narrative beats at the HELM and the actual deployment into the mission isn't as seamless as Bungie intended.


Most players hit a wall here because they expect a massive cinematic or a clear "Go Here" marker on the Director. Instead, A Rising Chorus Act 3 Step 7 usually requires you to interact with the holoprojector or speak to Ikora Rey before the mission node actually becomes relevant for progress. It’s a classic Destiny trope. You check your mail, you listen to a radio message that’s half-static, and only then does the game "click" into the next phase.

Maya Sundaresh is the core of this conflict.

Her obsession with "The Conductor" and the way she uses the Echo to subvert Vex logic isn't just flavor text; it’s the mechanical backbone of the Encore mission you’re about to tackle. In Step 7, you’re essentially verifying coordinates. You are looking for the breach point in the Maya’s Retreat area or heading straight into the Exotic Mission: Encore.

Some players report the quest step not updating even after they’ve listened to the dialogue. If that happens, orbit is your best friend. Seriously. Just leave the HELM, fly to the Tower, and fly back. It’s a 10-year-old game engine; sometimes it needs a nudge to realize you’ve finished the conversation.

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The Encore Mission: The Meat of the Quest

Once the quest updates, you're thrown into the Encore mission. This is where the difficulty spikes. This isn't your standard Vanguard Strike. It’s a complex, multi-layered gauntlet that requires you to understand the "Connection" and "Partition" buffs.

Basically, you’re playing a game of high-stakes celestial Tetris.

You’ll find these Vex terminals. One gives you a green buff (Connection), another gives you a yellow one (Partition). You use these to bridge gaps or unlock doors. In A Rising Chorus Act 3 Step 7, the stakes are higher because you’re likely pushing for the "Coda" or the final iterations of the Choir of One exotic auto rifle.

The boss fight at the end against the Nes0 Core is a marathon, not a sprint.

The boss has three distinct phases. In the first, you’re just dodging projectiles and clearing adds. In the second, the floor becomes lava—well, Vex milk—and you have to use the buffs to create safe zones. If you miss a buff rotation, you wipe. It's that simple. Most solo players struggle here because the timing is tight. You have about a ten-second window to dunk the data core before the wipe mechanic triggers.

Why the Choir of One Matters Here

If you haven't been paying attention to the weapon you’re building, Step 7 is your wake-up call. The Choir of One is a special ammo auto rifle that hits like a truck. It uses the "Command Frame," which makes it feel more like a mini-fusion rifle than a standard lead-spitter.

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During this quest step, you're often tasked with testing the weapon's capabilities or uncovering catalysts. The nuance is in the hip-fire versus the aimed-down-sights (ADS) fire. Hip-fire unleashes a spread that absolutely deletes majors, while ADS provides a concentrated beam for boss DPS. If you’re trying to clear the mobs in the final room of Act 3 Step 7 without using the hip-fire spread, you’re making your life ten times harder than it needs to be.


Technical Glitches and How to Avoid a Restart

Let's talk about the bugs. Destiny 2: The Final Shape has been great, but the seasonal transitions can be janky. Specifically, during A Rising Chorus Act 3 Step 7, players have noted that if you join a fireteam mid-mission, the quest might not count the completion.

Always start the mission from the beginning.

If you're at the part where you need to find the secret chests to progress the "Specimen" quests alongside Step 7, make sure you aren't skipping the dialogue triggers. If Failsafe hasn't finished her joke about being lonely, the door might not open. It’s annoying, but the game triggers are tied to the audio files. Wait for the talking to stop before you jump into the next portal.

Another thing: check your inventory. If your engram tracker or quest log is 100% full, the "Echo" item you’re supposed to retrieve at the end of the step might vanish into the void. It usually goes to the Postmaster, but occasionally, it just... doesn't exist. Clear some space. Delete those old blue transmat effects you're never going to use.


The Lore Significance of This Moment

Why are we doing this? Why is Maya Sundaresh so intent on Nessus?

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In the broader context of the Echoes storyline, Step 7 represents the moment we realize the Vex aren't just being controlled; they're being evolved. Maya isn't just a villain; she's a grieving genius trying to use the power of the Witness’s leftovers to bring back a version of her wife, Chioma Esi.

It’s tragic. It’s messy.

By the time you finish Step 7, the dialogue reveals just how far gone she is. She isn't looking for a compromise. She wants to overwrite the system. This makes the final push in Act 3 feel much more personal than your average "kill the big robot" mission. You’re fighting a ghost in the machine.


Action Plan for Finishing Step 7 Successfully

To get through this without losing your mind, follow this specific flow. Don't skip steps, even if they seem trivial.

  1. Clear your Quest Log: Ensure you have at least 3 slots open for the various Specimen quests that usually drop alongside this step.
  2. Talk to Everyone: Visit the HELM. Listen to the radio. Talk to Failsafe. If the quest doesn't update, fast travel to the other side of the HELM and walk back.
  3. Load "Encore" on Normal: Unless you're specifically hunting for the catalyst, run the mission on normal difficulty to ensure the quest scripts fire correctly.
  4. Buff Management: In the boss room, designate one person as the "Runner" for buffs. If you're solo, prioritize clearing the Wyverns before you even touch the buff terminals. They will snipe you mid-air.
  5. Final Interaction: Once the boss dies, don't leave immediately. There is often a small object to interact with near the central spire. Wait for the "Quest Updated" banner to flash across your screen.

After completing these steps, you'll likely be prompted to return to the HELM for a final debrief with Saint-14 or Osiris. This sets the stage for the finale of the Echoes saga. Make sure to check your rewards; the Echo Engrams you get from this step are high-stat and worth focusing at Failsafe for better armor rolls.

The grind is almost over. Once you clear this, you're on the home stretch to fully upgrading the Choir of One and seeing how the story of the first Echo concludes. Stick to the mechanics, watch the Wyverns, and let the dialogue play out. You've got this.