Call of Duty: Warzone 2.0 DMZ – How to Unlock All Building 21 Armory Rewards

by Arthur · January 12, 2023

Building 21 is the region added Warzone 2.0‘s survival extraction mode DMZ and it’s not for the faint of heart. An area that requires a limited item to access, has no minimap, and is full of tough enemies (players and AI), Building 21 is only for the most dedicated players. But those who defy the facility have the chance to leave with exclusive loot. Some of the loot is given to players as Weapon Case Rewards, which is carried over from the Al Mazrah map. The process of obtaining this weapon case is not as simple as its open map counterpart, so let me help guide players through the process. This guide will share how to get all 6 Building 21 Weapon Cases rewards in the DMZ Call of Duty: Warzone 2.0.

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How to unlock all Building 21 Weapon Case rewards in the DMZ

The first thing you need to do is gain access to Building 21, which you can find a full guide on how to do here. Broken down as simply as possible, you need to find a key card called the DRC Building 21 Access Card and you need to put it in your backpack in the pre-game lobby before choosing Building 21 from the two exclusion zones you can enter when you start a game . Now that you’re in building 21, it’s time to get your weapon crate rewards. Just like in Al Mazrah, you have to pull out with the armory to get the rewards, but while the process of getting the case in Al Mazrah was as “easy” as killing a Juggernaut, this requires a bit more of you. It’s important to note that this is going to be challenging, so make sure you have strong gear and weapons and a full team of three before you brave Building 21.

The first thing you need to do is find the data center room. This is a room that can be found on the lower floor of the facility in the basement corridor on the very west side of the area. Next to each stairwell is a map of the floor you are on, so use these to help your team navigate to the locations mentioned in this guide. Wait until the game reaches 12 minutes left and a message that says “Security Locks Hack in Progress.” Wait one minute for another message saying “Security locks disabled on all floors.” This is when you can start the hunt for the armory. Make your way through the basement corridor to the area furthest west of the lower floor where you will find the room shown in the picture below with a red light coming out at the bottom. This is the data center.

Once inside, clear out the AI and approach an active server that will tell you to interact with it. The player doing so must hold down the interaction button the entire time the line fills while their teammates defend them. Note that all other players will be notified that this data center hacking is happening, so be prepared for other players to appear.

Now that the hack is complete, you will be able to enter the Armory on the third floor. Go up to the third floor and go to the northern end of the hallway to find an orange door now open. This is the armory. Be prepared to encounter some other players, AI, and even a Wheelson on this floor. Once in the Armory, there’s a safe you need to open, an action that will spawn more AI enemies as well as alert the other players in the game.

Once the safe is open, wait for the game to reveal the Exfil point on the map at the 7-minute mark, then grab the case and sprint to the exit. When you get to the elevator, defend the area while the elevator goes to you for 30 seconds, enter, then defend the area for another 20 seconds while the doors close. When you come out with the gun case, you’ll unlock your reward.

When you pull out with the case for the first time, you will receive the first reward listed below. Each time you pull out with a case forward, you will get the next item on the list until you get all 6 of them. Pulling out with a case after this list is complete will give you some XP.

Below is a list of all 6 of the rewards you can get from weapon boxes from Building 21:

Going Bark – Weapon Charm
Weapon River – Phone card
Roar – Weapon sticker
The company Sniper – Emblem
Camo Cloud – Heavy Chopper Vehicle Skin
Silver Tox – Chimera Blueprint

Stay tuned to Gameranx for future news, updates and guides Call of Duty: Modern Warfare 2 plus Warzone 2.0.

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