Going to Building 21 in DMZ is no easy feat; trust me. You’ll be tested to your absolute limits as enemies linger around each corner and wait in each dark corridor for you and your teammates to walk into their line of sight.
If you’ve got yourself a Building 21 Access Key, you’ll be able to take your friends in to test your might. Once you’ve entered, you’ll have to survive. Otherwise, you’ll have to search for a new key all over again. I should warn you too that you only have a certain amount of time, so use it wisely.
But if you’re successful, you’ll get some excellent rewards for your hard work.
What is Building 21 in DMZ?
Building 21 is a multi-floored bio laboratory filled with critical information, stacks of cash and loot, and tons of tough enemies all vying to bring you down before you can exfil out with key pieces of data for your faction missions.
Seriously, it’s a tough raid filled with tight office corridors and spiral staircases that are meant to confuse you, and that’s not mentioning the other players who will be armed to the teeth and hunting you down for your gear.
However, you can’t just simply select Building 21 from the map selection screen and drop in. Entry comes at a premium—you’ll need a Building 21 Access Card.
Where to get a Building 21 access card in DMZ
To enter Building 21, you’ll need to find or purchase a Building 21 Access Key during a DMZ run. The cards can be found in orange high-quality loot containers in Al Mazrah but are incredibly rare to discover in the wild.
The method I recommend is to buy the Building 21 Access Card straight from a Buy Station. However, this will cost you quite a chunk of cash—$40,000, in fact—and you’ll need to exfil the card out to use it.
How to enter and beat Building 21 in DMZ
Once you’ve got the card, you’ll be able to enter Building 21, but only on weekends. It is a limited-time event available late Friday night to late Sunday night CT. Once the sun rises on Monday, you’ll be locked out and will have to wait a week until re-entering.
There are numerous objectives to complete inside Building 21, from various faction missions to taking down the miniboss Velikan and picking up his super sweet RGL-80 grenade launcher.
DMZ Building 21 Weapon Case rewards
The main objective most teams will be entering Building 21 for is the Weapon Case, which can be found by cracking the armory safe on the top floor of the building. To enter it, however, requires quite a bit of work.
You’ll need to enter and immediately proceed downstairs to the basement and await the security doors to open after a short time. Once inside, breach the Server Room and hack the terminal, all the while fighting off waves of AI and operators.
Related: How to find and enter the Koschei Complex in DMZ
Once hacked, the armory door will be open and accessible on the top floor of Building 21. So begins your march upstairs through endless enemies to the armory, where you’ll need to crack the safe to get the Weapon Case.
Once you’ve got your hands on it, find an exfil elevator, and the best loot will be yours. Each extraction of the Weapon Case will unlock a new piece of equipment for your loadout.
- Extraction One: Going Bark Weapon Charm
- Extraction Two: Weapon Rover Calling Card
- Extraction Three: Roar Weapon Sticker
- Extraction Four: Company Sniper Emblem
- Extraction Five: Camo Cloud Vehicle Skin
- Extraction Six: Silver Tox Weapon Blueprint for the Chimera rifle
