For a game that is technically still in beta, Call of DutyThe DMZ was certainly one hell of a fun experience. The latest in DMZ is a new playable area selectable when loading into DMZ, but you’ll need a keycard to enter. You can find keycards for this new area all over Al Mazrah. So do you want one? Don’t worry: This guide will cover some common ways to find the keys to Building 21 as well as how to stay alive long enough to successfully escape with one.
DMZ is a PvPvE mining-based game mode that is new to Warzone 2.0. Here, several squads of three deploy in CodAl Mazrah battle royale map, compete for lootable resources, experience intense battles with extremely difficult fights (sometimes unfairly) bots and other players who may or may not be your friends. Go in, do what you set out to do, survive, exfiltrate, rinse and repeat. Until now, Al Mazrah was the only map available in DMZ. This kind of change with Season 01 Reloaded, which introduced a new (and apparently more difficult) area. Many players have already found keycards for the new location. You can also.
Where to look for Building 21 keycards
Like other equipment in the DMZ, Building 21 keycards are randomly distributed. But you can prioritize certain locations to increase your chances of finding one.
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For now, much of what follows is based on hearsay and documented examples from the internet. r/DMZ is a great place to track discoveries in this mode (and will likely be one of the first places players start reporting the discovery of an entry point to Building 21). Note: You can only store 20 keycards in your supply at a time. So if you have stored other keys for random locations, you may need to use them before aiming to find a Building 21 keycard. There seem to be three types of Building 21 keycards, the “ blue access card”, the “red access card” and one called “access to building 21 of the DRC”. These appear to come in ‘used’ and ‘worn’ varieties, although the significance of this is not known at this time. Based on how other keys work in the DMZ, it’s safe to assume that this indicates how many uses you’ll get from a key.
Players are also discover notes with ultra-cryptic clues to the location of Building 21. No one has yet been able to make it head or tail.
The red and orange loot caches, while rare, seem to be a good source of keycards. However, the chance of one of them containing a keycard is entirely up to RNG. You can find these caches, as a rule, in fortresses, fortresses and on the train that moves around the map. These are dangerous places, so be on your guard. If you’re lucky and find one on the first try and without much gunfight, it’s time to get the hell out of Dodge to hide that key in your inventory.
Random Supply Drops can also contain Keycards. These spawn randomly (you’ll hear an announcement that a supply delivery is in progress, as will all other players you’re competing against). But you can also trigger one by capturing a SAM site.
Speaking of which, if you have the faction mission asking you to capture a SAM site and loot a supply cache that it shoots down, you can possibly kill two birds with one stone here. DMZ is often about finding opportunities to achieve multiple goals at once.
Supply caches shot down by SAM launchers may contain Building 21 keycards.. Unlike loot caches and other supply drops, capturing a SAM site and knocking a supply cache off an airplane is something you have a bit more agency over. Not a bad program to set when loading into the DMZ.
The commander’s helicopter appears to have building 21 key cards. As all DMZ players know, at random times and places a very deadly and aggressive helicopter will appear, loudly announcing that you must leave the area and it will shoot anyone it spots (God help you if this is the case). If it’s within range of a captured SAM launcher or you have the right gear, you can dismantle it and loot the remains. The RAPP H is a great LMG for this – and you can load it with armor-piercing ammo if you have it handy (you can select it as part of your field upgrade when loading). Robots also commonly carry rocket-propelled grenades, especially robots that patrol small villages.
DMZ: How to Stay Alive While Hunting Build 21 Keycards
The DMZ is unpredictable. It’s a good idea to jump into a definite agenda, but you can never know what the random combination of loot, bots, and players will bring. Here are some general tips if you’re looking for building 21 keycards.
When loading into the DMZ, choose weapons you are comfortable with, but make sure you or your team have a combination of the following:
Tactical equipment: Spotter Scope or heart rate sensor
Lethal Equipment: Near mine or claymore
Field Upgrade: Recon Drone, Munitions Box, Portable Radar, or Anti-Armor Munitions Box (if you plan to shoot down the Commander’s Helicopter)
Read more: Warzone 2.0DMZ: Everything you need to know about the game’s best new mode
My personal loadout still has a Spotter Scope, Recon Drone, and Claymore, but any combination of the above will work for you. And if you go with two friends, you can pretty much cover all of those bases or have room to experiment.
Because the DMZ is so deadly, you need to prioritize your ability to get to the extraction point if you want to get out with a Building 21 keycard. To that end, here are some do’s and don’ts. :
Do: Approach each location with absolute caution. That’s where Spotter Scopes and Heart Rate Sensors come in handy: Maintain a distance from anywhere that might be remotely occupied and use your Spotter Scope to check an opposition zone. You should never, ever enter any given area blind in the DMZ.
Do: Get out of there the second you find a keycard. Of course, this Intel contract seems very tempting. Or maybe you found a safe to crack. Forget. A Building 21 keycard is what you’re here for, and once you get it, your priority becomes extracting it safely. Getting out of the DMZ is a mission in itself. Robots may be patrolling the area. Exfil campers (re: other players) could explore the area. Approach with caution. Send a person to call the helicopter; Safely back up and run to board as soon as he’s within climbable distance. Never let your guard down until you’re safely in the air.
Do: Search every med kit you see. As of the last update, DMZ has more self-revive kits and revived guns. You can find them in a variety of places, but they’re most commonly found in the square medical boxes you find mounted on various walls. Having a Self-Revive Kit can mean the difference between walking away with a key card and losing all your stuff.
Do: Acquire an armored vehicle if you can. Sometimes you’ll have to run across the map to reach an extraction point (the 25 minutes DMZ gives you to complete all of your tasks evaporates before you know it). Armored vehicles aren’t invincible and you can take damage from inside, but they do much better than other rides in the game.
Don’ts: Accept contracts, hack drone towers, or try to complete objectives other than finding keycards. You are here to find a Building 21 keycard. This means that you have two objectives: find a card and exfiltrate it. While a completed contract is required to get an exfiltrate streak and an advantage, it might not be worth the risk if you’re just chasing a keycard.
Don’t: Shoot anyone (players or bots) unless they are shooting at you. Ammo and armor can run out quickly if you’re not careful, and firefights with any opposition in the DMZ can turn into a resonating cascading shitshow of relentless fights that will end in your death. and the loss of all the loot you have gathered.
Don’t: stay on the train for a very long time. Yes, this train has some great loot (maybe even keycards), but you’re on borrowed time every second you’re on board. It’s a giant beacon for other players to find great gear, and bots will open fire on it with armor-piercing shells the second they suspect you’re there.
No one is entirely sure what awaits in Building 21, but having a mystery like this to pursue in a remarkably unpredictable mode like DMZ is pretty exciting. Good luck scoring those keycards.
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