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DMZ CODEX · HAJIN EXCLUSION ZONE UPDATED 10 NOV 2026

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Codex / Items / Boathouse Key Updated 6 Nov 2026
Key

Boathouse Key

Mission key obtainable from Colossus in Operation Fallen Ember; opens the boathouse used for the escape.

Boathouse Key

Use this key

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What it opens

Mission key reported from Colossus in Operation Fallen Ember; opens the boathouse used for the escape.

The exact entrance is not marked.

How to get it

Operation Fallen Ember →

During the reported Fallen Ember warhead fight, Colossus drops the key used to open the mission boathouse.

No fixed pickup location is verified.

Get and use the mission key

  • In the reported Operation Fallen Ember ending, defeat Colossus at the warhead and collect the Boathouse Key.
  • Use it on the boathouse garage door, raise the door and follow the current boat-escape objective.

Mission scope

  • This entry describes the Fallen Ember mission pickup. Rarity, sale value, stack limit and retention between deployments are not established.

Guides that cover this

GuideMW4 DMZ keys and loot rooms: how to find and use them

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