Citadelle des Morts, the third Black Ops 6 Zombies map, features four elemental swords as wonder weapons. Just like in Der Eisendrache or Origins, these swords are super powerful and are required in order to do the map's main easter egg.
We have prepared an extensive guide to explain how to get and upgrade each sword to help you in your game.
How to get the four elemental swords in Citadelle des Morts
The process to obtain the base version of all four swords is the same, however, each one has a different set of steps you need to follow to upgrade them in Black Ops 6.
We will explain what you need to do to get a base sword and then we will give you the steps to upgrade each one.
First, open all the doors until you reach at least the Dining Hall room inside the castle, the interior courtyard with four knight statues on the first floor and the Vulture Aid perk machine on the second story.
After you've done that, focus on reaching at least round 10 in your game, since you need a special zombie that will start spawning at that stage.
This zombie is easily identifiable since it wears a bucket helmet and is shirtless as you can see in the following screenshot:
Eliminate this zombie and it will drop a gold item called Stamp. Pick that up and you are now ready to get one of the four elemental swords in its base version.
Head over to the Dining Hall we mentioned earlier and interact with any of the four knight statues. The statue will then change its stance and give you the bastard sword they are holding, in exchange for the Stamp you picked up before.
If you wish to get a different sword, you have to repeat the process. Luckily, bucket zombies are not rare so this shouldn't be so hard.
For solo runs, you can only have one sword in your back pocket. When you pick up another sword, the one you drop will eventually return to its statue and you can pick it up again from it at any time.
How to upgrade the elemental swords in Citadelle des Morts
Now we will explain how to upgrade each of the swords step by step so you don't get lost.
Dragon Sword
The Dragon Sword is the one you obtain from the following knight statue with a dragon silhouette on its chest:
With the sword in hand, head back to the main entrance of the castle, the same room where the Juggernog perk machine is. Go up the stairs and you will see a mini statue of a dragon.
Unsheath your sword if you don't have it in hand and interact with the statue to leave it in the spot in front of the dragon.
The next step requires you to get the flame out of three spots on the map and transport them back to the statue. When you pick up a flame, your character will receive burn damage continually until you either drop it or bring it to the statue.
You can regenerate your help by killing the purple-eyed zombies that spawn on your way back to the castle. You might require that only for two of the flames since one of the spots is really close to the castle's entrance.
The first spot is located in the following corner of the spawn area, right next to where you can activate the Rampage Inducer.
Interact with the flame to grab it and run back to the dragon's statue in the castle's Entrance Hall.
The second flame is also close to the spawn area. Starting from spawn, go to the gate at the left that leads to a mud path and you will see the flame spot on the other side of the gate as you can see in the following screenshot:
The last spot will be close to the cannon you used to open the castle entrance. From outside of the castle's main entrance, go up the stairs, passing by the Melee Machiatto perk machine, and before arriving at the cannon, you will see the flame spot between the gate trap control and the ammo box.
After bringing all three flames, the dragon statue will spit fire onto the sword and you will be able to pick it up after a few seconds.
Raven Sword
You can obtain the Raven Sword from this knight statue with a raven sitting on one of its shoulders:
Once you have the sword, enter the Alchemy Lab room that is behind the knight statue you just got the sword from.
If the passage between the raven and the stag statue is closed, you will need to unlock the Pack-a-Punch. After doing that, the passage between the two statues will open when you get close to the wall.
In there, you will have to pick up an artifact. There is a total of five different artifacts and only one will spawn in every game. Here are the spawn locations for each one so you can look for it in your match:
Raven Skull
Fish Fossil
Lion Jaw
Scorpion Fossil
Ram Horn
With the artifact in your inventory, head back to the spawn area and go to the Tavern Cellar, the bar's underground level. You will see a red portal and ring on the wall in front of it.
Interact with this ring to place the artifact you picked up in the center and then interact again to insert your sword in the slot underneath the ring.
Now it's time to crack the code. Interact with the circle again and you will be able to rotate both the inner and outer ring. The correct combination depends on the artifact you have in your game. Here are the correct combinations for all five of them:
Raven Skull
Fish Fossil
Lion Jaw
Scorpion Fossil
Ram Horn
After entering the correct combination, a portal will appear on the floor of that area and purple balls will start to spawn out of the ring. These purple balls will follow you, so just stand near the portal and they will go into it once they're close enough.
After the portal absorbs three balls, it will move to the bar's ground floor. Just follow the energy that forms after the portal closes and it will open a new portal again once it reaches its destination.
Balls will keep coming out of the ring, so repeat the process until three have entered the second portal. The third and final portal will be on the bar's second story, near the pool table, and once you fill it out, the portal will disappear and return to the ring.
After the purple energy returns to the ring, interact with it to make a portal appear on the ground below it. This will absorb the sword and the upgraded version will emerge after a few seconds.
Stag Sword
You can obtain the Stag Sword from this knight statue with a stag symbol on its chest:
For this sword, you must gather three Lightning Rods that can be obtained through different methods. The easiest one to get will be right next to the Deadshot Daiquiri machine, leaning on some boxes as you can see below:
For the second rod, you will first need to get the Dead Wire ammo mod equipped on one of your weapons. Just find one "The Arsenal" machine and spend 500 salvage points to equip it to any bullet weapon you have.
With Dead Wire equipped, go to the area where the Speed Cola perk machine is, just before entering the castle's courtyard. As you can see in the image, the second rod will be at the top of one of the house's antenna.
To bring it down, you simply have to shoot the electric box at the bottom of said house. Starting from that screenshot was taken, just walk forward and you will be able to see the electric box on the wall by the stairs.
Shoot it with the gun that has Dead Wire and the rod will drop right in front of you.
A special zombie drops the third and last rod. This zombie can only spawn after the Pack-a-Punch has been summoned, so make sure to do that first.
To make it spawn, go to the Dungeon area, where the Quick Revive perk machine is, and go through rounds there.
This shouldn't take much time and it usually spawns after you grab you Stag Bastard Sword. The special zombie will have armor and you can see the rod dangling on its vest, so it won't be that hard to spot.
You don't even have to spot the zombie, just keep killing and you will eventually see the rod on the floor. Pick it up and now go to the Village Ramparts, the castle's outside walls where the cannon is.
On the left side, close to the Elemental Pop perk machine, you will see a vase on top of a short stone pedestal. Get close and interact with it to insert all three rods.
After placing the rods, a thunderstorm will take place around the vase. Stay inside and pull out your bastard stag sword, since you will need it for this step.
With the sword out, just wait until a bolt of lightning drops down and charges it. Once it charges, melee the vase to transfer the lightning charge. The charge will dissipate from your sword after a few seconds, so transfer it quickly.
Special purple-eyed zombies will spawn indefinitely as you're doing this step, so you can either kill them or avoid them. Keep in mind that purple-eyed zombies are part of the step and won't affect the round, meaning you can kill them without worrying about progressing to the next round.
Just avoid killing those zombies with normal eyes since doing this step at the start of a new round will make it more difficult.
After transferring the charge three times, interact with the vase to place your sword. A short animation will play and then you will be able to pick up the upgraded sword.
Lion Sword
You can obtain the Lion Sword from this knight statue with a Lion head on its chest:
After grabbing the sword, four special parasites with a yellow glow will spawn in the same room. You will need them for the next step.
You can charge your Lion Bastard Sword every time you kill one of the parasites. The sword will glow yellow whenever it is charged.
You will have to transfer this charge four times to a door on the village side of the map. Go to the village area and you will find this door in the back alley. Here is the exact location on the minimap so it's not hard to find for you:
Once you're there, start transferring the charges one by one. Kill one of the parasites to charge the sword and then melee the door with the sword in hand. Every time you do this, one of the four symbols on the door will glow up.
After you've transferred all four charges and the four symbols are lighted up, interact with the door to enter an underground passage.
At the end of this passage, you will find a sanctuary where you can place your sword if you interact with it.
After placing your sword, a one-minute countdown will begin and you have to complete this step before that or else you will be kicked out of the room. If that happens, you have to progress to another round to be able to enter and attempt this again.
When the sword is set, you will notice there are four symbols on the sanctuary's pillar, and only one will light up.
At the same time, four floating symbols will come out of the top of the sanctuary and roam on the roof and walls of that place.
Your job is to shoot these floating symbols in order. So for instance, if the symbol of a circle with a dot in the middle is lit up on the sanctuary's pillar, shoot the same symbol. The floating symbols will move around, so they won't always be in the same place.
The symbol will go back to the sword and the next symbol on the sanctuary's pillar will light up. Repeat the process until you shoot all four symbols in order.
Once you finish that, a short animation will play and the upgraded lion sword will be ready to pick up after a few seconds.
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