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Round-based Zombies is finally back inCall of Duty: Black Ops 6, and that means one thing: it’s time to hunt some Easter eggs.
The Terminus map is a doozy, with multiple islands to explore and a plethora of Easter eggs to unlock. The most difficult (and exciting) of all, though, is the Main Quest, which will take you across the map to multiple boss battles.

Get the Wonder Weapon
To be able to start the Main Quest, you’ll need to have already turned on the power, as well as get at least one squad member theBeamsmasherwonder weapon.
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How to complete the main quest Easter egg on the Terminus Zombies map.
The Beamsmasher can be found in one of two ways: randomly receiving it via theMystery Box, orcraftingit through its own subsequent Easter egg (you’re able to find our guide above, orlinked here). We’ve tested it, and both methods will allow you to complete the Main Quest.

Find the Hard Drive in the Tentacle Trap
Find the Tentacle Trap with a keycard and bloodstain already below it (it will be at only one of the four traps on the map: in the Juggernog room, at spawn or either of the two in the Bio Lab). Activate theTentacle Trap, then shoot at the trap using theBeamsmasher. This will drop aHard Driveitem which you can pick up.
Deliver the Hard Drive to Peck
At theGuard Station, find themetal drop boxbeneath the window that Peck is sitting at. Interact with it to deliver the Hard Drive to him. Some dialogue will follow, then go back to the Bio Lab.
Talk to Nathan in the Bio Lab
On the side of thelarge chamber in the middle of the BIo Lab, find the keypad beneath a porthole. Interact with it to begin talking to Nathan on the inside of the chamber.
Find and Enter the Lab Chamber Code
To open the chamber and release Nathan, you’ll need to find the three digit code. Each number can be found in a different spot on the upper section of the main island.
Digit #1: Interrogation Rooms Clock
The first number is indicated by thehour handon the clock in theInterrogation Rooms, behind the metal fence.
Digit #2: Cafeteria Card
The second number is indicated by aplaying cardfound on the cork board in theCafeteria. The board is right next to one of the doors, above a blue barrel.
Digit #3: Engineering Accident Sign
The third number will be found on asignin theEngineering workshopnext to the crafting table. It will read “Safety First, Days Since Last Injury.”
Input thethree numbers in order(in our case, 473) on thekeypadbeneath Nathan’s circular window.

Turn Handles on the Chamber
Each player will need to turn a handle (by interacting with it) on the side of Nathan’s Chamberin unison. If one person is playing, they can turn the handle whenever.
Defeat The Enemies
Upon turning the handles, the firstmini-boss fightwill be triggered. Stay alive and fend off the spawning zombies while dealing damage to the mini-boss until you trigger a cutscene, which will confirm the mini-boss is defeated.
Use the Communications Terminal
In the Communications room, find theTerminal with green texton the screen and interact with it. Some dialogue will trigger, and will prompt you to replace the Node Connectors for the island.
Access the Secret Hatch on the Sunken Ship
In order to access the secret room on the sunken ship, you’ll need to retrieve thekeycardfirst. The keycard is foundunderwater in the Bio Lab, and will be resting on the floor with an orange outline.
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Next, use a Tactical Raft and sail to the big sunken cargo ship. There will be a hole in the side with a large opening, and inside is aladderthat leads to a secret room. Climb the ladder and interact with the hatch at the top, to go into the room.

A series of enemies will spawn in the room, and you’ll need todefeat all of themand stay alive in order to be able to leave.
Place the Node Connectors
In the hatch room, there will be twoNode Connectorssitting on a table on the side of the room. Take these and carry them to the emptyNodesaround the map. Our match had an empty Nodeunderneath the Sea Tower, as well as oneacross from the Speed Colamachinein the caves.
Installing the Node Connectors takes some time, so verify to have people covering whoever is placing them.

Retrieve the Hacking Device from Peck
After the Node Connectors are placed, follow Peck’s directions to pick up theHacking Deviceat theGuard Station. It will be in thedropboxbelow his window.
Hack the Three Buoys
You will now need to travel by raft to thethree red buoysaround the map. They will be guarded by flying enemies. Interact with the buoys to begin hacking them, and they’ll start flashing with agreen lightonce you have finished.
When the first buoy is done being hacked, acountdown timer for two minuteswill start. You must hack the other two buoys within that time frame, or you’ll have to start the hacking process over again.
Defuse the Three Bombs in the Bio Lab
After some dialogue, a new countdown timer will pop up, giving you five minutes todefuse the three bombs in the Bio Lab.
Go to the Bio Lab and interact with the bombs (behind previously closed doors) to begin defusing them. The defusal process takes a long time, so make sure to have cover and plenty of distance from the zombies before you begin. Two of the bombs will be on the lowest level of the Bio Lab, and one will be underneath the raised office (near the photo artifact location).
Interact With the Door
Once you have defused all the bombs, the door to the next area will be unlocked inside the Bio Lab. Interacting with the door willinitiate the final boss, and serves as apoint of no return. Be sure to have any upgrades and perks you’ll need before interacting with the door on the lower level of the Bio Lab.
Defeat the Boss
We won’t spoil the final boss battle for you, but we will provide some tips about how to defeat it.
Upon defeating the boss, a cutscene will trigger, and you’ll have completed the Main Quest. Congratulations!
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