On this page, you will find details on where to use the Maintenance Room Keycard in the X01 area of DMZ mode in Call of Duty: Modern Warfare 4 and how to get it.
How to get the Maintenance Room Keycard in X01 in MW4 DMZ
In DMZ, you can get the Maintenance Room Keycard by encoding the Maintenance Access into an Encodable Blank Keycard at the Keycard Encoder Station found in the Supply Depot area at the marked location above.
Alternatively, you can also obtain the Keycard from any searchable object.
For example, I got mine from a dead body inside X01.
Encodable Blank Keycard
You can get the Encodable Blank Keycard through multiple methods:
- You can find it on tables and racks in the X01 area
- You can obtain it by completing the X01 Orders
I have consistently found it in the Control Room area, on the big table.
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Where to use the Maintenance Room Keycard in X01 in MW4 DMZ
You can use the X01 Maintenance Room Keycard to unlock the room on the third floor of the Production Assembly area, at the marked location in the screenshot above.
To get there, make your way to the lower level of X01 area and then, head to the Production Assembly’s entrance found at the marked location above.
Enter through the gate and head to the right, where you’ll see stairs leading to the third floor.
Climb up the stairs. On the second floor, you will find another locked room that holds good loot. You can access it by punching the container on its roof and jumping down in the room.
Now, back to the topic, head to the third floor and climb up the stairs.
Once you enter the room, on your left, you will find the Maintenance Room.
Use the Maintenance Room Keycard to unlock the door. Grab the loot.
Here’s a video version of the guide:
