BO6 Citadelle Des Morts Easter Egg Walkthrough
The Citadelle des Morts map in Call of Duty: Black Ops 6 Zombies has a multi-step main quest. 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.
Completing the BO6 Citadelle des Morts Easter egg requires several linked puzzles. 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
Completing the main quest in Standard mode unlocks the Jackknife Weaver Operator skin. The special early-completion Calling Card was limited to the period before Directed Mode arrived; it is no longer a current reward.
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.
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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.
- In the Oubliette, shoot the locks on the large container, defeat the Doppelghast, then use the dropped crystal at the container to reveal Pack-a-Punch.
- At this point, the real quest begins.
In the Dungeon near Quick Revive, interact with the door of Gabriel Krafft’s cell after unlocking Pack-a-Punch. His conversation starts the main quest.
From here, collect the torn pages, unlock the swords and incantations, and work through the ritual puzzles before obtaining 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:
- Collect the four torn page fragments and place them in the Undercroft book.
- Solve a symbol puzzle tied to the tavern and the Undercroft.
- Activate and survive four power traps in a specific order.
- Acquire and upgrade the four Bastard 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.
The four page fragments spawn at varying spots in the Sitting Rooms near Stamin-Up. Check the furniture and surfaces throughout that room:
- 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 fragment has a red glowing mark. Search the room methodically rather than relying on a fixed location.
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:
Take Melee Macchiato and return to the cracked wall in the Undercroft. The perk lets your melee attack break open the wall.
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:
Solving the symbols opens the nearby book compartment in the Undercroft.
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.
Match each Point of Power symbol to the book. Read the four page positions in order: top left, bottom left, top right, bottom right. The active symbol pattern can vary, so do not follow a fixed list of trap locations.
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, collect the four ritual items and complete each item’s ritual. 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.
The four knight statues stand in the castle Entrance Hall. Match each statue with its sword and incantation, then use the inspection mechanic in the order shown by the nearby animal symbols.
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: Prepare before using the Guardian Key to begin the final encounter. Upgrade your weapons and armor, restock ammunition, and bring a recovery option if available.
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
Reward availability depends on the quest mode. The early-completion Calling Card was a time-limited reward before Directed Mode was added.
Recommended Loadouts for the Easter Egg (BO6)
Upgrade the weapons you can use consistently, and reserve Essence and Salvage for the final encounter. The choices below are optional examples, not quest requirements.
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: Allow for the four required Point of Power trap activations, plus doors and Pack-a-Punch upgrades.
- Watch the Symbols Carefully: Record the animal-symbol order before visiting the knight statues so you can match each sword and incantation.
- 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 combines the four elemental sword upgrades, incantation rituals, Points of Power traps, Mystic Orb trials, and the Guardian fight. Follow the symbol clues in your own match rather than assuming a fixed pattern.
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FAQ
Completion time varies with your familiarity with the puzzles, upgrades, team size, and round pacing. Directed Mode provides quest guidance if you want to learn the route.
Yes. It’s absolutely possible to solo this Easter egg — just harder. Certain steps like the orb collection challenges and Guardian boss fight are trickier without teammates, but manageable with the right loadout and Field Upgrade.
The Mystic Orb challenge sequence and the Guardian boss fight are the biggest choke points. One tests your focus and mechanics; the other tests your endurance and resource management.
Yes. The entire Easter egg is built around the four elemental swords — Lion, Dragon, Raven, and Stag — and their corresponding incantations. You won’t get far without them.
Change Log
- 18.04.2025 - BO6 Citadelle Des Morts Easter Egg Walkthrough overview published.