CoD Black Ops 6 Reckoning Guide

Reckoning is the last Zombies map in Call of Duty: Black Ops 6, tying up the narrative thread that started in Terminus and continued through The Tomb. This time, you dive into Project Janus — a towering, multi-level complex crammed with prototype tech, creeping Dark Aether rot, and covert laboratories. From assembling Franken Klaus to forging the fearsome Gorgofex Wonder Weapon, Reckoning delivers one of the most intricate Easter Eggs ever seen in the series.

This CoD Black Ops 6 Reckoning guide walks you step by step from your first spawn all the way to the climactic boss against either Samantha or Richtofen. You’ll open core sectors, craft your Wonder Weapon, tackle reactive puzzles, and knock out layered objective chains. Let’s unpack everything you need for a smooth Reckoning run.

If you want the completion rewards for the Reckoning map instantly, you can buy BO6 Zombies Reckoning Boost service at Gamer Choice. This service completes the Reckoning main quest for your account by pro CoD players. You’ll secure the operator skin, a calling card, and more. Check out the link for full details.

How to Start the Reckoning Easter Egg

To begin the BO6 Zombies Reckoning main quest, first bring Pack-a-Punch online and unlock the facility’s key zones. The opening beats are guided by in-game prompts; once Pack-a-Punch is active, objectives disappear and everything must be discovered manually. Use the setup sequence below to stay on track.

Find Richtofen’s Office and Open the Facility

Right at the start — before you push ahead — find the mop bucket in spawn. Melee it until it slides beneath the overhead sprinkler. This is used later in the Easter Egg, but you must do it now so the sprinkler has time to fill the bucket. After that, build up Essence by clearing early rounds. You have two initial routes:

• Right path: Heads to the Mutant Research Wing
• Left path: Leads into Quantum Computing

Both work, but for consistency we’ll take the Quantum Computing path:

1. Open the door to Quantum Computing (1,750 Essence).
2. Enter the T1 Quantum Computing Core and proceed forward.
3. Unlock the next door (2,000 Essence) to reach the T1 Quantum Computing Lab.
4. Use the Anti-Grav Personnel Launcher to jump to the next tower.

You’ll arrive in T2 Android Assembly. Move toward the Entity Containment door and open it (2,250 Essence), then step into the nearby Aether Elevator.

• The elevator drops you into the T2 Dark Entity Containment area.
• Use the next Anti-Grav Launcher to return to T1, landing at the T1 Executive Suite.
• Unlock Richtofen’s Office (2,500 Essence) and interact with the snow globe on his desk.
• This opens the red teleporter, giving access to Sublevel 10.

Activate Pack-a-Punch

Step into the red teleporter to reach T2 Sublevel 10. Go up to the Particle Accelerator Control Room and interact with the console to power it. After activation, 12 Aetherium Crystals appear on the coolant pipes.

• Shoot all 12 crystals to relieve the reactor pressure.
• Gravity will drop, letting you float toward the hovering Pack-a-Punch and interact with it.

You can now upgrade weapons and continue the BO6 Reckoning Easter Egg.

Build Franken Klaus

Now the true Black Ops 6 Reckoning walkthrough begins. Franken Klaus is mandatory for pushing the Easter Egg forward. You’ll gather four limbs and perform a lightning activation using Mecha Klaus. Once online, Franken Klaus handles hacks and advances major objectives linked to the Teleportation Lab.

Collect Klaus’s Legs

Both legs are located in T2 Android Assembly, but spawns rotate each game. Sweep the room thoroughly—look for large, white mechanical limbs. Frequent locations include:

• On a shelf
• Leaning against a wall
• Beside a shattered mirror
• Inside a scrap pile

Grab both legs before proceeding.

Collect Klaus’s Arms

Arms drop from Kommando Klaus enemies during bonus rounds. Expect them around Rounds 5–6 and again near Rounds 10–12.

• Shoot a Kommando Klaus’s shoulder joints to sever an arm.
• Pick up the fallen limb (you can only get one arm per bonus round).
• Repeat in a later bonus round to secure the second arm.

If you’re stuck, check the screenshots in this BO6 Zombies final map guide for reference.

Assemble Franken Klaus

With all four limbs collected, return to T2 Android Assembly and find Klaus’s suspended torso hanging from the ceiling.

• Interact with the body to attach both arms and both legs.
• Klaus is assembled but still inactive.

Power Up Franken Klaus

Wait for a Mecha Klaus to spawn in a later round, then kite it back to Android Assembly near the hanging body.

• Bait Mecha Klaus into using its electric ranged strike.
• Ensure the lightning hits Klaus’s inactive body.
• If done correctly, Franken Klaus awakens and walks to a nearby computer to begin his first hack.

You’re ready for the next stage—shadowing Franken Klaus through his trials and activating the SAM system in Reckoning.

Unlock the Teleportation Lab and Solve the Folder Code Puzzle

With Franken Klaus alive, he’ll run a chain of hacks across the facility. To enter the next critical space—the Teleportation Lab—you must complete his tasks and solve a randomized four-digit folder code tied to personal items left by Maxis, also known as the BO6 Reckoning folder code puzzle.

Follow Franken Klaus’s Hacking Sequence

• After activation, Franken Klaus interacts with a terminal in T2 Android Assembly.
• He moves to a SAM Trial terminal—complete a simple “kills inside the marked area” challenge.
• He proceeds to the T2 Teleportation Lab and starts a final system access.

Once he’s working at the Teleportation Lab terminal, it’s time to pull the access code.

Collect Four Maxis Items

Inside T1 Executive Suite and T1 Director’s Office, find four Maxis-related items, each tied to a folder with a unique archived date and an item number.

Common items include:

• Katana (desk)
• Wristwatch (table)
• Combat Goggles (near lamp)
• BND Badge (coffee table or desk)
• Notso’s Collar (office desk)
• Scarf (bookshelf or chair)

You only need four per match. Each has a visible number (e.g., 6) and an archive date (e.g., 10/07/2022). Use the first digit of the date to determine order, then string together the item numbers.

Solve the Code and Unlock the Lab

With your four-digit code in hand:

• Go to the T2 Teleportation Lab terminal.
• Enter the digits in chronological order based on the first number in each item’s archive date.
• Example: if your items are 4 (date: 9/12), 6 (date: 10/11), 2 (date: 12/02), 5 (date: 8/23), the final code is 5246.

Entering the correct code unlocks the adjacent door, pushing the main quest forward and opening the next pivotal sequence in Reckoning.

Retrieve the Brain and Power the SAM System

With the Teleportation Lab open, you’ll retrieve a key quest item—the purple brain—and power the SAM system to keep the Easter Egg rolling and handle the BO6 Reckoning teleporter puzzle. This sets up later access to the boss fight and Wonder Weapon crafting.

Collect the Brain from the Quantum Core

Head into the T1 Quantum Computing Core and find a metal container near the SAM terminal.

• Melee the container to crack it open. The Melee Macchiato perk can help—some players do it without, but grabbing it guarantees success.
• Inside is a glowing purple brain.
• Pick it up and be ready to move—carrying the brain disables your weapons.

Deliver the Brain to Klaus

Return to the T2 Teleportation Lab where Franken Klaus is active.

• Interact with the terminal beside Klaus to insert the brain.
• This powers up the SAM system, letting you progress toward the Wonder Weapon and mutation experiments.

At this point, the next phase of the Reckoning Easter Egg unlocks, involving elemental puzzles, zombie samples, and another mutant boss moment.

Create the Gorgofex Wonder Weapon

The next segment revolves around a multi-step mutation process. You’ll solve a code, collect zombie energy, and defeat a tough enemy. Finishing it rewards the Gorgofex—vital for the rest of your Reckoning run.

Decode the Chemical Element

Start in the Mutant Research Lab and Mutant Research Test Area. Two static-filled monitors display random words each round.

• Visit both monitors and note the first capital letter of each word.
• Combine the two letters to form a chemical element symbol (e.g., “C” and “U” → Copper).
• Cross-reference the symbol with the periodic table on the Test Area wall.
• Take the atomic number from the top-left of the element’s box and pad a leading zero to make it three digits (e.g., Copper = 29 → 029).
• Go upstairs in the same room and enter the code on the keypad to unlock the Bioweapons Lab and start the mutation.

Charge the Cyst with Zombie Essence

Inside the Bioweapons Lab, you’ll see green goo stored in a tank.

• Train a group of zombies and soften them with a low-damage gun.
• Lead them near the tank; the machine will absorb roughly ten zombies.
• Interact with the tank to collect the filled cyst.

Now for the next cyst step.

Energize the Cyst with Spores

Take the filled cyst to the Quantum Labs (back in T1) and locate the yellow-glowing mushrooms on the walls.

• Stand by a glowing mushroom to siphon energy into the cyst.
• Repeat this at three mushrooms total.
• Once fully energized, the cyst is ready for transfer.

Transfer the Mutant Energy and Summon the Forsaken

Head to the Dark Entity Containment Room and activate four surge panels.

• This powers a pressure plate and spawns Uber Klaus.
• Break Uber Klaus’s shoulder pads to weaken him—but don’t kill him.
• Lure the low-health Uber Klaus onto the electrified pressure plate.
• A white screen flash signals his transformation into the Forsaken.
• Defeat both forms of the Forsaken. Afterward, place the cyst into the central glowing orb. This forges the Black Ops 6 Gorgofex Wonder Weapon, crucial for the remaining Reckoning steps.

Cleanse the Zombie Head and Capture Aether Shards

With the Gorgofex in hand, new mechanics open up. You’ll grab a severed zombie head, purify it, and use special devices to snag floating Aether shards scattered around the map.

Retrieve the Zombie Head

Return to the T1 Quantum Computing Core.

• Use a charged Gorgofex shot to blast into the gap in the ceiling above the main area.
• This knocks loose a severed zombie head. Pick it up.

Cleanse the Head in the Mop Bucket

If you completed the early spawn setup, the mop bucket should already be under the sprinkler.

• Go back to spawn.
• If the bucket is full, place the head inside to cleanse it.
• After a moment, pick up the cleansed head—it now acts as a soul box.

Charge the Soul Box

Remain near the head and kill zombies within its radius. After enough kills, it fully charges.

Carry it to the T2 Teleportation Lab and set it next to the teleporter. This finishes prep for the lockdown in Reckoning.

Find the Gers Devices and Capture Aether Shards

Search Tower 1, especially floors near the Executive Suite, for any of five boxes that can contain secret Gers Devices.

• Pick up a Gers Device.
• Locate floating purple Aether shards around the tower.
• Throw the Gers at a shard to “capture” it—it functions like a Poké Ball.
• Do this for four shards total, retrieving the Gers each time.
• After all four are captured, return to the Teleportation Lab and insert the devices into the machine by the teleporter.

Final Lockdown and How to Choose Your Boss Fight

This final pre-fight section starts a lockdown and lets you choose your final boss—Samantha or Richtofen. Your selection directly shapes the mechanics and difficulty of the last encounter in Reckoning.

Begin the Lockdown Sequence

With Aether shards delivered, interact with the machine beside the teleporter in the T2 Teleportation Lab to begin the lockdown.

• The room seals and five switches begin turning red.
• Watch them closely; as each turns red, interact to flip it back to green.
• Keep flipping all five until they stay green. The lockdown ends.
• Shortly after, the teleporter reactivates as the gate to the final battle.

Pick Your Final Boss

Before entering the teleporter, the game prompts you to select a path:

• Choose Samantha: Generally the more approachable fight.
• Choose Richtofen: Considered tougher with stricter mechanics.

The one you do not pick becomes your opponent in the final phase—selecting Samantha means you’ll fight Richtofen, and vice versa.

For a more forgiving solo experience, pick Samantha. For a greater challenge, pick Richtofen.

Once decided, interact with the teleporter and step into the boss arena to complete Reckoning.

Boss Fight – How to Beat Samantha or Richtofen

The BO6 Zombies Reckoning boss features one of two enemies depending on your earlier choice: Samantha Maxis or Edward Richtofen. The encounter spans multiple phases with vertical movement and distinct mechanics for each boss. You’ll handle an initial setup phase before the true arena.

Elevator Phase – Ether Canisters and Crystals

As the battle begins, you spawn on a multi-floor elevator platform.

Activate the Ether Canisters

• Interact with each of the three canisters.
• Charge them with nearby kills, soul-box style.
• Once charged, the elevator rises.

Shoot the Glowing Crystals

• On the next floor, floating red Aether crystals appear.
• Destroy all crystals—charged Gorgofex shots or a Dead Wire AR help a lot.
• When all are destroyed, the elevator ascends to the final arena.

Boss Choice Mechanics

Fighting Samantha

Samantha manifests as a huge floating orb wrapped in Aether energy.

• Damage windows open when she:
  • Channels a big AOE attack, or
  • Opens her red orb clusters
• Unload burst DPS during these short windows.
• Use ranged weapons—Pack-a-Punched ARs/LMGs—to tag her while she’s airborne.
• Dodge her telegraphed shockwaves and tracking orbs.

Overall, Samantha’s fight is the simpler of the two; careful positioning and burst timing carry the day in Reckoning.

Fighting Richtofen

Richtofen appears in human form but attacks with potent relic powers.

• Teleports frequently, making target tracking tricky.
• Summons projectiles and slowing energy zones.
• Periodically calls elite zombie waves to pressure you.
• DPS windows occur when he pauses to charge or emote.
• Bring Casimir Grenades and Ether Shroud to reposition or break combos.

Tips for Surviving the Final Fight

• Triple Pack-a-Punch your primary before entering.
• Use Idol Eyes to draw aggro and create breathing room.
• Equip Dead Wire or Lightning ammo mods for faster boss/add clear.
• Prioritize survival during invulnerable phases—save DPS for true openings.

Once the boss hits zero HP, the screen flashes white and the final cutscene triggers, completing the Reckoning Easter Egg and concluding the BO6 Zombies storyline.

F.A.Q.

How to Start the CoD BO6 Reckoning Easter Egg?

Begin by unlocking Pack-a-Punch following the in-game objective markers. Once the Particle Accelerator is active and all 12 Aetherium crystals are destroyed, proceed to construct Klouse. Afterward, continue with the syringe retrieval and mutant injection steps to officially start the main quest.

How to Build Klouse in CoD BO6 Reckoning?

Gather 2 arms and 2 legs for Klouse. The arms are obtained by shooting them off Mecha-Klouse enemies during bonus rounds (one per round), while the legs are located in the T2 Android Assembly room. Once you have all four limbs, attach them to Klouse in the assembly chamber to activate him.

How to Solve the Folder Code Puzzle in Reckoning?

Locate four Maxis-related items and record both their numbers and archive dates. Arrange them in reverse chronological order based on the dates, then combine the associated numbers into a four-digit code. Enter this code into the computer in the T2 Teleportation Lab to progress.

How to Get the Gorgofex Wonder Weapon in Reckoning?

First, solve the periodic element code by checking the static screens. Fill the cyst by luring infected zombies, then energize it with yellow spores. Complete the Uber Klouse encounter, defeat the Forsaken, and place the cyst into the central orb. Finally, participate in the beam event and kill vermin to upgrade it into its blue variant.

How to Beat the Boss in CoD BO6 Reckoning?

Select Samantha for an easier battle or Richtofen for a tougher challenge before entering the final arena. In Phase 1, charge and fill three Aether canisters with zombie kills. In Phase 2, destroy all glowing crystals to move between floors. During the final phase, only deal damage when the boss exposes red orbs or during specific attack animations. Bring their health to zero to finish the last Black Ops 6 Zombies Easter Egg.

Conclusion

Reckoning is Black Ops 6’s most ambitious and elaborate Zombies map, weaving years of story and systems into a single finale. From anti-gravity launchers to vermin-charged cysts, this Easter Egg leans on fast traversal, puzzle logic, and layered objectives. With buildable allies like Klouse and Franken Klaus, randomized chemical codes, and soul-bound zombie heads, BO6 pushes the Zombies formula further than ever.

While the sequence can feel dense at first, each step follows a logical chain once Pack-a-Punch is up. Follow this walkthrough to avoid missing crucial triggers—from charging the cyst with yellow spores to choosing your final boss fight in Reckoning. As always, preparation wins: fully upgraded guns, the right Field Upgrades, and a good grasp of each arena’s layout will tilt the odds in your favor.

With Reckoning complete, you’ve finished the entire Black Ops 6 Zombies saga. Enjoy the closing cinematic—you earned it.