To access the Command Centre in 007 First Light, you must first upgrade your ID bracelet in the Security Office by entering the code 1864. Then go through the vent, upgrade your ID bracelet and unlock the Command Centre door.
Access the Command Centre mission details
How to Access the Command Centre Step-by-Step
Step 1: Get the Office Key

On the floor above the operations room, eavesdrop on the conversation.

You’ll find that the ID bracelet needs to be upgraded in the Security Office.

Now head to the operations room and eavesdrop on the conversation between guards.

Read the message on the machine.

Pick up the Office Key from behind.

Step 2: Enter the Archive
Go downstairs to the Archive on the bottom floor.

Use the Office Key to unlock the door, then enter code 1864.

Inside, you’ll see a vent leading to the Security Office.
Step 3: Upgrade Your ID Bracelet
Take the vent inside the Security Office.

Cross into the next room, and take down both guards.

Use the device on the wall to upgrade your ID bracelet.

Step 4: Access the Command Centre
With your upgraded ID bracelet, approach the Command Centre door and enter.

The upgrade now grants you access.

Critical Mistakes to Avoid
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Don’t touch the sensors in the main hall—use the vent instead.
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Press ‘E’ after entering
1864at the door, or it won’t open. -
Distract guards before entering cubicles—you’ll alert them if you rush in.
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Don’t skip collecting the Safe Key—you need it to open the safe with the code.
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If the door is greyed out, you likely haven’t upgraded your ID bracelet yet.
Now that you’re in the Command Centre, you can progress through the mission fairly quickly.