Black Ops 6 Season 5 offered a boatload of content at launch, from new weapons like the ABR A1 to the arrival of 6v6 maps like W.M.D. And Exchange. However, the Reckoning may be the biggest addition yet, taking players to the final chapter of the Black Ops 6 Zombies storyline.

Whether it be exploring its various side Easter Eggs or embarking on its main quest, the Reckoning offers its own set of challenges to complete. One such challenge, whether you're playing through the main mode or Directed Mode for Season 5 Reloaded, is figuring out the code for the Bioweapons Lab in Mutant Research. Here is a quick guide on how to solve this step.

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How to Use the Letter of Each Code Word to Find an Element on the Periodic Table in Mutant Research (Reckoning)

To find an element on the periodic table in Mutant Research, start by locating two static screens in and around the Mutant Research Lab. One of these screens can be found near the Deadshot Daiquiri Perk Machine, while the other is located within the T1 Mutant Research Test Area. Periodically, these screens will flash a word. Take note of the first letter of each word. If only one word is displayed on the screens, simply note down that one letter.

How to Find an Element on the Periodic Table in Mutant Research in Reckoning - 3

From here, proceed over to the Periodic Table in the T1 Mutant Research Test Area. Put the two letters together that you noted down earlier, and then look for the matching element. From here, take note of the element's atomic number (displayed in the top left of the element). These are the digits required for the code. If you only have one letter, look for the element with that letter and take note of its atomic number.

How to Input the Element's Atomic Number into a Keypad to Open the Door to the Bioweapons Lab (Reckoning)

Next, head up the stairs to the T1 Bioweapons Lab. Here, players will need a three-digit code, which should be the atomic number identified earlier. If you get an atomic number that is only one or two digits, fill in the missing digits with a zero. In our case, our letters were R and N, and so the element we had to find was Radon (Rn) with an atomic number of 86. Therefore, our three-digit code was 086.

Simply input the correct three-digit code into the Bioweapons Lab's Keypad Terminal to unlock it and complete the objective. For a rundown on the full Reckoning Easter Egg Quest, head to this guide here.

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Call of Duty: Black Ops 6 Tag Page Cover Art
Call of Duty: Black Ops 6
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9 /10
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Released
October 25, 2024
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WHERE TO PLAY

SUBSCRIPTION
DIGITAL
PHYSICAL
Checkbox: control the expandable behavior of the extra info

Developer(s)
Treyarch, Raven Software
Franchise
Call of Duty
Genre(s)
FPS
OpenCritic Rating
Strong