Infinity Ward released a major update for Season Six of Call of Duty: Warzone recently, adding new characters, game modes, weapons, and a lot more. The Call of Duty franchise is known for its easter eggs, and this update adds a pretty cool new one to the game.
The easter egg, which is added to the Subway, the new way to fast travel in the game, gives players a Firebrand blueprint for the Bruen MK9. Completing the easter egg is quite a tedious task and there are barely any hints in-game on how to do it. Here is how to unlock the Subway easter egg and get the Firebrand blueprint.
First of all, you need to get to City Hall in Verdansk. The City Hall is roughly in the center of Downtown, and you can find it in the G6 square of the map. You can identify the building by the silver-colored dome on top. Head inside the main door of the City Hall, and you will find a desk on the right.
Vault over the desk and you will see a keypad on the left-hand side. Enter the code ‘2179’ and the room will start filling up with gas. Now comes the difficult part. There’s a computer screen on the right-hand side which will display four different images.
The images represent paintings in the room, and there will be a Roman numeral below each painting. Enter the number corresponding to each painting and Roman numeral in the terminal and you will get the ‘Subway Override Authorized’ message on the screen.
Once that’s done you need to head to the Verdansk Airport Subway. You can find it in the D4 square of the map. Head downstairs and you will find a room with a white door in front of you. Interact with the computer inside the room to get the message ‘A.E. Train Arriving soon.’
A train will arrive at the Subway and it will take you to a bunker which will contain a lot of loot including the Firebrand blueprint for the Bruen MK9.