Players can get their hands on many rewards and an exclusive Silver Tox Blueprint from Building 21 in DMZ. Here’s an in-depth guide on how to get the weapon case and rewards from Building 21.
Call of Duty Warzone 2.0’s new game mode title DMZ is Warzone’s take on Escape From Tarkov. The survival looter game mode is based on Warzone 2.0’s map on Al Mazrah. However, Infinity Ward has added a new DMZ-exclusive area labelled Building 21.
Building 21 is the codename for a clandestine biological laboratory in Al Mazrah. The exact location of the area has not been revealed yet. Most players might ask what makes this area different from other areas in DMZ. The answer to that is high-tier contraband and loot.
Furthermore, players can extract weapon cases which will count towards their progression for an ultimate reward. Here’s an in-depth guide on how to get weapon cases and the associated rewards.
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How to get Weapon Cases in Building 21 Warzone 2 DMZ
Weapon cases can be found in the Armory Room from the Control Room in Building 21. Here’s how to successfully extract weapon cases:
- Get your hands on a DRC Building 21 Access Card in Al Mazrah (Typically found in supply drops).
- Infil into Building 21 from the DMZ menu.
- After landing on the man, head to the Server Room on the basement level of Building 21.
- Once the timer reaches 11 minutes, locate the required terminal and hold Interact to complete “hack the server.”
- An alert will signal that the Armory Room is open, now, head to the top floor of Building 21 to find it.
- After entering the Armory Room, approach the safe and press the Interact prompt to loot it.
- When the safe is open, defend the location until the timer reaches 7 minutes.
- The exfil sites will now be highlighted.
- Collect the Weapon Case and move to Exfil as quickly and safely as possible because you’ll be marked for every player in the lobby.
- Call the elevator and start defending the location until the timer runs out.
- Repeat this process five more times to collect all the rewards and earn the Silver Tox Weapon Blueprint.
All DMZ Building 21 Rewards
Here are all the Building 21 Rewards players will get after completing the weapon case challenge:
- Going Bark Charm
- Weapon Rover Calling Card
- Roar Weapon Sticker
- Company Sniper Emblem
- Camo Cloud Vehicle Skin
- Silver Tox Chimera Weapon Blueprint

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