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Main Quest · Die Maschine

Seal the Deal

The Die Maschine main quest, "Seal the Deal," opens the Dark Aether storyline: Requiem re-enters the rift the Omega Group reopened at Projekt Endstation and shuts it for good. It needs the D.I.E. Shockwave plus all four of its elemental variants, and it ends on a protect-and-escape sequence rather than a boss fight. Cold War’s forgiving systems make it a strong first modern main quest.

Difficulty: ModerateSolo availableSpoilers: high
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Still from “Call of Duty®: Black Ops Cold War - Die Maschine Intro Cinematic”
Die Maschine · Call of Duty via YouTubeOpen tac map

Spoiler warning

This walkthrough reveals the map's finale. Continue only if you want to know how it ends.

Preparation

Before you start

Prerequisites

  • • Pack-a-Punch forged (power on, both Particle Accelerator terminals used)
  • • The D.I.E. Shockwave, plus all four elemental variants before the finale

Walkthrough

Step by step

  1. 01

    Restore power and forge Pack-a-Punch

    Turn on main power, reactivate the Particle Accelerator at its two terminals, then forge the Pack-a-Punch machine from the Dark Aether.

  2. 02

    Free the D.I.E. and build the Aetherscope

    Take the keycard from a Megaton kill, collect the D.I.E. Shockwave from the bunker, then gather the three Aetherscope parts in the Dark Aether and craft it behind Pack-a-Punch.

    Tip: Plaguehounds spawn as you pick up Aetherscope parts — clear space before grabbing each one.

  3. 03

    Return Vogel’s diary

    Use the Aetherscope to reveal Dr. Vogel’s spectral reflection and return his diary, unlocking the Der Wechsler terminal.

    Warning: A Megaton Overlord spawns while a player is in the Dark Aether for this step.

  4. 04

    Charge the Der Wechsler

    Shoot the holding tank’s container legs with each of the four D.I.E. elemental variants — Cryo-Emitter, Nova-5, Electrobolt and Thermophasic.

  5. 05

    Retrieve the Decontamination Agent

    Enter the new Dark Aether rift and bring the missing Decontamination Agent back to the machine.

  6. 06

    Protect Orlov

    Summon Dimitri Orlov’s reflection with the family photo, then defend him at the Particle Accelerator through the Magnetic Containment, Primary Coolant and Fail-Safe objectives.

    Orlov cannot be hurt, but he stops working whenever zombies reach him — the fight is about keeping the room clear, not keeping him alive.

  7. 07

    Escape the collapse

    Leave the Dark Aether and reach the extraction point in the Yard within roughly ninety seconds, dodging the lightning beams on the way out.

    Warning: There is no boss here — the finale is this timed escape. Miss the window and you go down with the facility.

Following along in-game? Switch to Guided Mode for one step at a time on a screen you can read at arm's length.

References

  1. 1.Die Maschine — Call of Duty Wiki — Call of Duty Wiki (Fandom). callofduty.fandom.com · accessed Jul 21, 2026Community-verifiedcorroborate
  2. 2.Black Ops Cold War Zombies — The Story So Far (Official) — Call of Duty (Activision). callofduty.com · accessed Jul 21, 2026Official

Last reviewed Jul 15, 2026. Spotted an error? Suggest a correction.