With the introduction of Firebase Z in Call of Duty: Black Ops Cold War’s Zombies mode, one of the most exciting new elements is the RAI K-84, which is otherwise known as the “Wonder Weapon.” It’s a heavily modified AK-74 rifle that makes use of some supernatural technology, and you can get it in the game if you know how.
There are a few different ways to get the RAI K-84, but the ones currently unlocked in Zombies are essentially up to chance. Still, it gives you a chance to try out the weapon before a more reliable method becomes available. Check back in after the Easter Egg mission has officially been unlocked for another strategy to acquire the Wonder Weapon. You can also check out the patch notes for everything added in the most-recent update.
You can get the RAI K-84 by completing trial missions, which are challenges assigned at a computer in the Firebase Z map. You can locate this computer almost immediately after teleporting to the map, and it will assign you missions and give rewards for completing them. You need to get a Legendary reward in order to have a shot of getting the RAI K-84.
You are not guaranteed to receive the Wonder Weapon for your Legendary reward. Rather, it’s not possible to get the weapon if it isn’t a Legendary reward.
Prefer to gamble? If you try out the Mystery Box on Firebase Z, you just might get the RAI K-84. This is even more random than trying to get the weapon in the Trials, but there is a chance you’ll get it quickly and can start using it with absolutely no extra effort. Of course, you may also be left with a junky weapon you won’t want.
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