Call of Duty: Warzone’s mysterious vault door unlocked to reveal ... another vault door

When Call of Duty: Warzone launched in March, fans were immediately intrigued by a series of massive bunkers scattered across the map. Now, more than two months after the game first launched, those giant double doors can finally be opened. Inside players are finding massive piles of loot, but also more questions in need of answers.

The secret to opening the bunkers is a Red Access Card, an item that appeared only recently inside Legendary chests. If players use the keycard in the keypad just outside a bunker door, a light overhead turns on, and the doors swing inward with a puff of dust.

On the other side of the vault door, down a flight of stairs, is a single room with loads of high-level loot and cash. With only one way in and one way out, the bunkers are likely to become hotly contested battlegrounds in the coming days and weeks.

But inside those bunkers there’s also ... another giant door. So far fans are stumped as to how to get those to open. (That didn’t stop them from peeking inside, though! See below.)

One potential clue comes at the very end of Monday’s patch notes: “Number station <redacted> is Protocol Yellow. Activate <redacted> system. <redacted> is inbound. Awaiting correct authorization.” The Warzone community is actively searching for new clues scattered across the map, and also inside the bunkers themselves. As of right now, the mystery remains unsolved.

Update (11:46 a.m.): It seems that players have already managed to clip through the second vault door, which houses a nuclear warhead (among other things). Imagery taken from behind the door can be seen in this tweet:

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