Call of Duty: Warzone's Urzikstan Battle Royale map features several locked bunkers scattered across the battlefield. You can now open Bunker 7 with an access code to unlock a free in-game reward; here's how.
HOW TO OPEN THE BUNKER 7 ACCESS CODE AND COMPLETE THE BO6 CHALLENGES! (She Never Let Me Down Easter Egg Guide)
Bunker 7 is located northeast of the Old Town district in the northern region of Urzikstan. I've marked the exact location of the bunker on the map above (see the yellow marker). You can reach this locked room by playing any game mode available in the playlist, be it Plunder, Buy Back Royale, or regular Battle Royale.
The bunker is located on the riverbank, next to the radio tower as seen in the picture above. I was able to fly directly to the location during a game of Plunder, but there were other players there as well. So be prepared, because you may have to fight your way into the bunker.
After reaching Bunker 7, you will need to enter the access code 72559 on the keypad on the right wall, which is indicated in the image above. Interact with the number keypad and enter the access code to unlock the doors. It may already be open if someone entered the bunker before you.