BO6 Citadelle Des Morts Easter Egg Walkthrough

The Citadelle des Morts map in Call of Duty: Black Ops 6 Zombies offers one of the most complex Easter eggs in the game so far. Set inside a haunted French fortress, the main quest is built around puzzle-solving, elemental weapons, and a multi-phase boss fight that requires preparation and coordination.

Сompleting the BO6 Citadelle des Morts easter egg takes time, focus, and understanding of the mechanics. You’ll need to unlock the four elemental swords, gather incantations, interact with ancient statues, and use the Guardian Key to trigger the final battle.

BO6 Zombies Citadelle des Morts Easter Egg

This is easily one of the most demanding Easter eggs in Call of Duty Black Ops 6, and completing it unlocks exclusive rewards, including the Jacknife Weaver Operator skin and the Citadelle Quest Completion Calling Card.

You’ll need to activate the Pack-a-Punch, recover torn book pages, master the mechanics of the four elemental swords, locate hidden ritual items, and complete elemental challenges using incantations tied to each blade. It all leads up to the Mystic Orb, the Guardian Key, and one of the most intense Zombies boss fights in BO6 yet. For players focused on rewards rather than repetition, Call of Duty Boosting Services can be a smart shortcut.

Activate the Pack-a-Punch and Speak with Krafft

Before you can begin the main Easter egg quest in Citadelle des Morts, you need to gain access to the castle interior and unlock the Pack-a-Punch machine. This step is straightforward but critical — without it, you won’t be able to progress.

How to Activate Pack-a-Punch in Citadelle des Morts:

• Head to the Ramparts in the outer Courtyard area.
• Use the Lion Cannon to blast open the castle’s main gate.
• Enter the castle interior and make your way underground to the Oubliette Room, where the Pack-a-Punch machine is located.
• Once you reach the Pack-a-Punch, interact to activate it. It’s now available for upgrades.
• At this point, the real quest begins.

Just nearby, in the same underground section where Quick Revive is located, you’ll find Gabriel Krafft imprisoned in a wooden cell. Approach and interact with him to trigger the first major dialogue sequence. He’ll introduce the concept

This conversation officially starts the BO6 Citadelle Des Morts Easter Egg — and marks the beginning of the first real task: finding the torn book pages and assembling the ritual text needed to summon the Mystic Orb.

Main Quest: Citadelle Des Morts Easter Egg in BO6

Before diving into the full walkthrough, here’s a quick breakdown of what you’ll face in the BO6 zombies Citadelle des Morts easter egg. Your Main Objectives:

• Recover and assemble the torn ritual pages.
• Solve a symbol puzzle tied to the tavern and the Undercroft.
• Activate and survive four power traps in a specific order.
• Acquire four elemental swords (Lion, Dragon, Stag, Raven).
• Find and upgrade four ritual items tied to those swords.
• Collect all four incantations (light, fire, electric, dark).
• Solve the Knight Statue puzzle and summon the Mystic Orb.
• Complete the four elemental challenges with the orb.
• Unlock the Guardian Key.
• Prepare for and defeat the Guardian Boss Fight.

You’ll travel across the Town Square, Dining Hall, Undercroft, Alchemical Lab, and Cave Slide, encountering everything from green orb puzzles to incantation-based sword mechanics.

Find All Torn Pages (Unlocking the Ritual Path)

To begin the main easter egg quest in Citadelle Des Morts, your first task is to locate the four torn ritual pages. They’re key components for unlocking the mystical book hidden deep in the Undercroft, where most of the dark rituals begin.

All four pages are located in and around the Stamin-Up Room, on the west side of the map. The pages spawn randomly, but here are common spots to check:

• On the bed in the far corner
• Inside an open crate
• Underneath or behind the Stamin-Up machine
• Near the chalkboard or drawings on the wall

Each page is marked by a red glow and has a distinctive red-eyed sketch, so they’re hard to miss — if you're looking carefully.

Tip: Use Aether Shroud or clear out the area before searching. Zombies can easily interrupt the process, and you’ll need all four pages to move on.

Solve the Secret Wall Puzzle and Place the Ritual Pages

With the four torn ritual pages in your inventory, head into the Undercroft, the shadowy area beneath the castle. Here lies the next key puzzle in the bo6 citadelle des morts easter egg walkthrough — the glowing symbol wall.

How to Reveal the Wall:

Before anything, make sure you’ve got the Melee Macchiato perk (usually found in the Courtyard). Once that's done, head to the suspicious wall in the Undercroft — it looks cracked and worn, tucked near the base of the stairs.

Melee the wall with the perk active. A hidden panel of blue glowing symbols will be revealed.

How to Get the Correct Symbol Order:

Now comes the tricky part. To solve the wall, you need to shoot the symbols in a specific order, but the game doesn’t just hand that to you. Instead, you’ll need to:

• Go back to the Tavern/Bar area near spawn.
• Interact with six bottles, each labeled with a Roman numeral (I–VI).
• Each bottle reveals a unique blue symbol — note down or screenshot the order.
• Now return to the Undercroft symbol wall.
• Shoot the first symbol (from Bottle I).
• Wait until the symbols stop spinning.
• Shoot the second symbol (from Bottle II), and so on until all six are done.

Insert the Ritual Pages:

If you've done it right, a red orb will appear and open a hidden chamber beside the wall. Inside, you’ll find an ancient open book on a pedestal.

Interact with it to insert the four ritual pages you found earlier.

This unlocks the next phase of the bo6 zombies citadelle des morts easter egg: the trap sequence connected to the Points of Power.

Complete the Four Ritual Trap Challenges

Once the torn pages are placed into the ancient book, it reveals four glowing red symbols — your next objective is to complete four trap-based trials, each tied to one of these symbols.

How the Traps Work:

Each symbol in the book corresponds to one of the Points of Power traps scattered across the map. Your job is to:

• Find the trap matching the symbol.
• Activate it (each costs 1,600 Essence).
• Stay inside the red circle and kill zombies until the trap shuts down.

There are six traps total, but only four will be correct. You must check the symbol on each one to find your match. The book in the Undercroft tells you the order — usually top left, bottom left, top right, bottom right.

Trap Locations:

You’ll know a trap was correct if the matching symbol in the book stops glowing after you finish it. Once all four correct traps are complete, return to the book to confirm progression.

Tip: Do not activate traps randomly — it wastes Essence. Always cross-reference the red eye symbols in the book before engaging.

Find the Four Ritual Items

To unlock the elemental incantations for each sword, you’ll need to collect and upgrade four unique ritual items. These are tied to the fire, light, electric, and dark swords and are essential to completing the bo6 citadelle des morts easter egg main quest. You can complete them in any order.

After obtaining all four ritual items, the next step will be to acquire their matching incantations. These are tied to the four elemental swords and are required to unlock the mystic orb.

How to Get All Four Incantations

Once you’ve got all four ritual items — Ra’s Ankh, Pegasus’ Horseshoe, Raven’s Talon, and the Paladin’s Brooch — it’s time to unlock the elemental incantations. Each one powers up its matching sword and is required for the main easter egg quest in Citadelle des Morts.

You’ll find four golden circles around the map. Each serves as a ritual site. Place the correct item into the circle, kill zombies to fill the soul meter, and then melee the resulting chest with the matching elemental sword to claim your incantation.

Each incantation unlocks unique abilities and will be used later when activating the mystic orb and solving the four knight statues puzzle.

Placing the Swords and Activating the Knight Statues

With the four elemental swords and their incantations in hand, the next step in the bo6 Citadelle des Morts easter egg is tied to the four knight statues — each marked by a unique symbol: lion, dragon, stag, and raven.

You’ll find these statues in the Dining Hall, positioned around the room. The key now is matching each knight to the correct sword and incantation, and then activating them in the correct order using the inspection mechanic.

Instructions:

• Find the Symbol Order
• Go to the wall past the Alchemical Lab.
• You’ll see four glowing symbols in a clockwise layout.
• This is your activation order:
• Top (12 o’clock) → First
• Right (3 o’clock) → Second
• Bottom (6 o’clock) → Third
• Left (9 o’clock) → Fourth

Match Symbol to Statue Use this reference:

Activate the Statues:

• For each symbol in the wall's clockwise order:
• Equip the corresponding sword and incantation.
• Go to the matching knight statue.
• Use the incantation (tactical button) in front of the statue.
• Then inspect your sword (weapon inspect).
• If done right, the knight will glow and the sword will be “accepted”.

Once all four statues are activated in the correct sequence, a beam of light forms in the middle of the room revealing the Mystic Orb.

Completing the Elemental Challenges with the Mystic Orb

Now that the knight statues are activated and the Mystic Orb has appeared, you're entering one of the most dynamic sections of the bo6 citadelle des morts easter egg. The orb the centerpiece of four combat trials, each tied to a specific elemental sword and its corresponding incantation.

These are known as the four elemental challenges, and you can complete them in any order. Each trial is linked to a location on the map and demands specific actions with a specific loadout.

Obtaining the Guardian Key

Once you’ve completed all four elemental challenges using the Mystic Orb, head to the hidden wall just past the Alchemical Lab — the one that showed the symbol order earlier.

Insert the Mystic Orb into the socket. This will unlock a secret room behind the wall.

Inside, you’ll find a glowing red cylinder. Interact with it to trigger a short dialogue scene. When it finishes, you’ll be able to pick up the Guardian Key — the final item required to enter the boss arena.

Important Tip: The Guardian Key can only be used once. So make absolutely sure you’re fully prepped — triple Pack-a-Punched weapon, max armor, all perks, self-revive, and ideally a Mutant Injection. Better to spend 10 extra minutes getting ready than fail the boss fight after all that effort.

Final Boss Fight – The Guardian

This is it. The last stand of the BO6 Citadelle Des Morts Easter Egg. Once you insert the Guardian Key into the pedestal at the Town Square statue, there's no turning back. The ground shakes, the statue slams down its hammer, and you’re teleported into a sealed arena to face the Guardian Boss — a towering armored nightmare that doesn’t care how long you spent getting here.

Boss Fight Strategy:

The fight plays out in three distinct phases, each more chaotic than the last. The Guardian is slow but brutal, with massive health, and will summon endless waves of zombies to keep pressure high.

Once the Guardian finally collapses, glowing cracks forming across its armor, you’ll be able to approach the corpse and claim the Amulet — the final quest item.

Citadelle Des Morts Easter Egg Rewards

These rewards are yours once you defeat the Guardian Boss and pick up the Amulet.

Recommended Loadouts for the Easter Egg (BO6)

You can technically complete the BO6 Citadelle Des Morts Easter Egg with anything — but some setups make it way easier.

Tips & Strategies for Citadelle Des Morts

• Use the Slide Early: The Cave Slide can be used repeatedly. Mastering it helps you unlock the Raven’s Talon early and farm ammo safely.
• Track the Orb Locations: It’s easy to lose track of where to insert the Mystic Orb. Keep a mental note: spawn, dining hall, castle entrance, and Undercroft.
• Save Essence: You’ll need around 6,400 Essence for traps alone. Don’t waste money on Mystery Box spins early.
• Watch the Symbols Carefully: The order of elemental statues matters. Screenshot the symbol wall or write it down — guessing wrong resets progress.
• Elemental Combos Matter: Pair the correct sword + incantation for each ritual. You can’t fake this part — the game checks both.
• Boss Fight: Don’t rush DPS. Break armor, hit crits, manage zombies, and keep your Field Upgrade charged at all times.

Summary

Citadelle Des Morts is easily one of the most ambitious Zombies maps in Call of Duty: Black Ops 6. It mixes deep puzzle-solving with layered progression and then throws a massive, mythic boss fight at you for good measure. From the four elemental swords to the Guardian Key and the mystic orb trials, it’s a ride that doesn’t let up.

And for players who want the full experience without the exhausting grind through high rounds and setup loops, there’s a smarter way forward — with the Call of Duty: Round Based Zombies Boost!

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Change Log

• 18.04.2025 - BO6 Citadelle Des Morts Easter Egg Walkthrough overview published.