Locate at least two of the Stadium key cards (EL-21, CL-16, and P2-16). Use the key cards to open the corresponding locked rooms in Stadium. There are computers inside of these rooms that will display ciphers when interacted with. Write down the ciphers, including the glyphs (of which there are three distinct kinds). Looking at the two ciphers together will reveal the numerical values assigned to two of the glyphs. See timestamp 4:05 in the video below for help with this step. This will get players very close to having a complete Stadium access code. Fans can now go to the door that requires the access code and enter various codes, using a different number for the unknown glyph each time. Using this method, players will eventually enter the correct access code and be able to enter the room.

As of the start of Call of Duty: Warzone Season 5, players can now enter the Stadium, and there is a new puzzle for them to solve within. This puzzle centers around obtaining an access code to unlock the double doors on the top floor of Warzone’s Stadium, and the community is working to solve it right now. The intention of this guide is thus to track the progress that is being made to obtain the Stadium pass code, and it will be updated as additional details are confirmed.

The first step to finding the Stadium access code in Call of Duty: Warzone seems to be connected to the other three locked rooms at this location. More specifically, there is a locked room at the Stadium’s Executive Lounge (top floor), Concourse Level (main floor), and Parking Lot Level 2, and players will need to find special key cards in order to open them. These key cards are named EL-21, CL-16, and P2-16 respectively, and they appear to spawn randomly around Stadium.

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Once a Warzone player has found one of these key cards, they can then proceed to open the corresponding Stadium door. Inside they will find some valuable loot and a computer that can be interacted with to receive a cipher made up of numbers and glyphs. It is these ciphers that players believe hold the key to receiving the Stadium access code, though theories on exactly how this functions vary at the time of writing.

One prevailing theory is that players must obtain all three of the Stadium key cards in Warzone, and record the ciphers from all three of the computers contained within, in a single match. The idea here is that if fans put these ciphers together they will be able to create a string comprised of only numbers, no glyphs, and that this string will serve as the Stadium access code. However, the rarity of the Stadium key cards combined with the fact that the ciphers change every match means that fans have not been able to verify this yet.

Another theory is that the glyphs contained within the ciphers actually correspond to numbers, and some players believe that if they are able to crack that code they will easily obtain the Stadium pass code. This is likely to remind some fans of how the process for unlocking Bunker 11 in Warzone was discovered, and indeed the Warzone subreddit is currently trying to work this all out.

Again, this guide will be updated as more of these details are verified, and players are advised to check back in the upcoming days for additional information. Until then, though, Warzone fans may simply want to try their hands at collecting all three of the Stadium key cards in a single match to see if they are able to generate a Stadium access code for themselves.

Call of Duty: Warzone is out now for PC, PS4, and Xbox One.

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