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Utility Maintenance Storage H4 Key | Location + LOOT Guide | MW4 DMZ Guide


Published: Oct 27, 2026
Last Edit: Oct 27, 2026
204 Words, 1 Minute.

Watch the video:


Timestamps:
0:00 - Intro/Explanation
0:42 - Where to get Gas Masks & Rad Pills
1:24 - Where to get the Hazmat Suit
2:00 - Utility Maintenance Storage H4 Location
2:15 - Utility Maintenance Storage H4 Loot

Have the Utility Maintenance Storage H4 Key? This video shows you where to use it as well as the loot inside so you know if it’s worth keeping! Utility Maintenance Storage H4 - Unlocks the maintenance room beneath the transformer area next to Reactor 01 within Haneul Nuclear Reactor

Questions answered in this video:
Where do you use the Utility Maintenance Storage H4 Key in MW4 DMZ?
Where is the maintenance room at Haneul Nuclear Reactor?
How do you find the storage room beneath the transformers near Reactor 01?
Where do you get Gas Masks and Radiation Pills?
How do you find a Hazmat Suit?
How do you prepare for the radiation at Haneul Nuclear Reactor?
What loot is inside Utility Maintenance Storage H4?
Is the Utility Maintenance Storage H4 Key worth keeping?

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