How to solve the computer math puzzle and input the sequence on Terminus in BO6 Zombies

Joey Carr

Joey Carr

One of the Easter Egg steps on Terminus requires you to “Input the Sequence,” but how do you do that?

The Terminus Easter Egg in Call of Duty: Black Ops 6 Zombies is currently the hardest one to complete. There's a myriad of difficult steps and a particularly challenging boss fights that players have to work through.

However, before any of the truly difficult steps come to fruition, players have to do a little math homework. One of the early steps in the Terminus Easter Egg requires you to "Input the Sequence," which isn't clearly explained in Zombies.

The Input the Sequence step comes after you activate all three of the Harmonic Triangulators on the map. Both of these steps work together, but you'll need to study your surroundings if you want to move on to the next step in the Easter Egg.

How to find the Harmonic Triangulators in Zombies

First off, you'll need to find and activate three Harmonic Triangulators that are spread out across the Terminus map. The triangulators aren't located too far apart from one another, so you won't have to travel too far. Below, you can see a location description for each Harmonic Triangulator:

  1. Harmonic Triangulator #1: The first triangulator is located right above the Pack-A-Punch machine if it's been lifted up to the surface. Head up some steps on the left side of the Pack-A-Punch platform to reach the Harmonic Triangulator (which is a laptop on a crate). Activate it and move on to the next.
  2. Harmonic Triangulator #2: The second triangulator is located to the east of the first. Go down the steps you went up, cross the Pack-A-Punch machine platform, and keep going until you see some steps on your right. Go up the steps, turn left, and you'll see another Harmonic Triangulator laptop.
  3. Harmonic Triangulator #3: Finally, the third triangulator is located directly near the Deadshot Daquiri perk machine. Go down from the helipad to the cave area and once you pass the Deadshot perk, make the first right you can, go through a gate, and spot the last Harmonic Triangulator right before you head down more steps.
Screenshot by esports.gg
Screenshot by esports.gg

Once all three Harmonic Triangulators are activated, go back up to the prison area of Terminus to "Input the Sequence."

How to Input the Sequence in Zombies

The "Input the Sequence" step needs to be done inside the small office room in the central courtyard. Inside, you'll see a large machine on a desk that can be interacted with. When you go to interact with the machine, it will say "Input Sequence."

Screenshot by esports.gg
Screenshot by esports.gg

From here, look at the three yellow post-it notes on the machine in front of you. The symbols right below the "X,Y,Z" letters are what you need to remember. Every player's symbols are random, so you and another player likely won't have the same ones appear. There's a complicated math equation that's required to solve the meaning behind the symbols, but you don't need to do that. Instead, simply head to Terminussolver.com.

This site allows you to input your specific symbols for each letter. Simply look at the post-its, find the symbol that corresponds with each letter on the site, click the symbol, and then out will pop three numbers. You need to enter those numbers into the machine in the order you see them on the site.

Screenshot by esports.gg
Screenshot by esports.gg

If you did everything correctly, your numbers will turn green and Peck will come over the radio to congratulate you. This step of the Easter Egg on Terminus is now complete. For those of you that have moved on from this step but might be struggling with future boss fights, make sure you're using one of our top five weapons in Zombies.

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