Peck then gives you instructions to head to the Bio Lab and interact with the main central chamber.

Doing so revealsNathan Aguinaldo, a truly tragic character and the brother of my favourite Operator, Maya Aguinaldo.

Saving Nathan from his Bio Lab prison requires finding a three digit keypad code scattered throughout Terminus.

The behemoth Patient 13 rises above the water, all full of mucus and tentacles, in Black Ops 6 Zombies.

The code is randomised per playthrough and hidden in some pretty obscure places.

Alas, upon his release you’ll see that Nathan isn’t in the best of states.

You’ll need to hop in a boat to head to the Shipwreck.

The Beamsmasher Wonder Weapon in Black Ops 6 Zombies.

Once you pick them up, the room goes into lockdown and a zombie wave spawns.

You’ll get aHacking equipment, which you gotta take to the Docks.

Here it’s crucial that you drive out in a boat and search for threeWater Satellites.

The locations of two Tentacle Traps on the Terminus map in Black Ops 6 Zombies.

Each boat is swarming with Parasite enemies and you’ll need to defeat them to start hacking.

A tentacled enemy will also attack if you dilly-dally in the water for too long, so be speedy.

As soon as you hack the third satellite, hurry back to the Bio Lab.

The locations of two Tentacle Traps on the Terminus map in Black Ops 6 Zombies.

This is probably the most pain-in-the-butt part of the easter egg aside from the last boss battle.

If you’ve got good teammates, this will hopefully be less of an anxious experience.

Defeat Patient 13

Finally it’s time for the big, bad final boss battle -Patient 13.

This clock’s hour hand contains a digit needed for a code in Black Ops 6’s Terminus map.

Fighting Patient 13 is a tough affair with glowing weak spots that change throughout the fight.

To reduce the poison, fire at the tentacles just outside the arena.

Eventually, Patient 13 will appear once again, and its weak spot has now shifted to its tentacles.

This card contains a digit needed for a code in Black Ops 6’s Terminus map.

Once enough damage has been done, the weak spot will shift to Patient 13’s mouth.

It’s time to use the big guns and whatever Scorestreaks you have.

Well done on completing the main quest of Terminus!

This safety sign contains a digit needed for a code in Black Ops 6’s Terminus map.

For the other Zombies map in Black Ops 6, see our guide oncompleting the Liberty Falls easter egg.

Lastly, for regular multiplayer matches, check our guides on thebest gunsin Black Ops 6.

We’ve also got lists ofhow to unlock each weaponandevery Operator.

Nathan, the most tragic character of the Terminus map in Black Ops 6 Zombies, in his Amalgam form.

Travelling by boat to the Shipwreck in Black Ops 6 Zombies' Terminus map.

The locations of a Node Connector on the Terminus map in Black Ops 6 Zombies.

The locations of two Node Connectors on the Terminus map in Black Ops 6 Zombies.

Battling the huge Patient 13 at the end of Terminus in Black Ops 6 Zombies.