Learn how to get inside Building 21 & its rewards in MW2 DMZ

Learn how to get inside Building 21 & its rewards in MW2 DMZ
Images via Activision

Written by 

Coleman Hamstead


17th Aug 2023 17:35

The entire MW2 DMZ mode is built on the idea of risk vs reward, with Building 21 showcasing that perfectly as one of the toughest areas in the game. However, as an extraction shooter, you will sometimes need to scour some areas like this to earn the most powerful loot and sustain your future excursions.

So, check out our breakdown of MW2 DMZ Building 21, and what you can find inside.

How to enter Building 21

When deploying into the DMZ, you will have the choice between Al Mazrah or Building 21. However, you won't be able to enter Building 21 without a Building 21 Access Card.

You can find Building 21 Access Cards randomly in Orange Supply Boxes and Supply Drops around Al Mazrah. You can also get a Building 21 Access Card by killing a Commander in MW2 DMZ.

In addition to the Building 21 Access Card, there are Red and Blue Access Cards that grant entry into locked rooms in Building 21 that hold high-tier Contraband.

Click to enlarge

Rewards inside Building 21 in MW2 DMZ

Click to enlarge

Don't bring anything you don't want to lose into Building 21, because this compact area is swarming with heavily armed AQ Soldiers, plus competing Operators. But with risk comes reward, as Al Mazrah can't hold a candle to the goodies hidden within Building 21.

The Building 21 Access Card and the Red and Blue Access Card aren't the only Keys tied to Building 21. There's a Black Access Card too, but the only way to get it is to defeat Veliken, a Boss that resides in Building 21.

As for the loot, Building 21 is loaded to the brim with high-end Contraband to plunder. Included amongst the abundance of Three-Plate Armour Vests, Self-Revives, and Killstreaks are Weapon Cases. Every time you exfil from Building 21 with a Weapon Case, you will get one of the following rewards:

  • Going Bark Weapon Charm
  • Weapon Rover Calling Card
  • Roar Weapon Sticker
  • Company Sniper Emblem
  • Camo Cloud Vehicle Skin
  • Silver Tox Chimera Blueprint

And who knows? There may be more secrets still undiscovered...

With that, you should be ready to take on the challenges that await in Building 21. Gather a couple of trusted comrades and prepare a Loadout for this dangerous DMZ locale.

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For more MW2 DMZ guides, stick with GGRecon. Alternatively, check out all the MW2 DMZ key locations.

Coleman Hamstead
About the author
Coleman Hamstead
Coleman is a freelance journalist at GGRecon. While gaming has always been his passion, it wasn’t until he worked as a Sports Journalist at the Community College of Baltimore County that he found his enthusiasm for writing. In the time since Coleman has had his work featured in publications such as The Washington Post/Launcher and ESTNN. Coleman is a graduate of Towson University with a degree in Sport Management and Business Administration.
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