CoD Black Ops 4 Zombies: Classified Walkthrough

Last Edited: October 26, 2018 at 10:29 AM

Classified is the first of four Zombies maps in Black Ops 4 that require the Black Ops Pass to access the map.

A special thanks goes out to the YouTuber Unpunk, for providing all of the images in our Classified walkthrough.

Before you begin the Classified Easter Egg Walkthrough it is important to note that the community has suggested that using the Welling revolver, as well as taking Frag Grenades or Acid Bombs is highly recommended, as they will help aid in the later steps of the Easter Egg.

Before you begin any major steps to unlocking the Main Easter Egg, it is recommended that you talk to the mysterious voice behind one of the doors to unlock upwards of 4,500 bonus points.

Between the Escargot wall-buy and the Brew Perk machine, you will find a closed door in the Main Offices. Simply interact with this door and you will begin to hear a man talking to you for approximately 30 seconds. You will want to interact with the door 5 times.

After the 5th time, Samantha will respond and begin to talk to you. This will trigger crawlers to start spawn.

CoD Black Ops 4 Zombies: Classified Walkthrough

Simply melee all of the crawlers and you could earn upwards of 4,500 points in your very first round.

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In order to Pack-a-Punch your weapons, follow our complete Pack-a-Punch guide for Classified here.

In order to start obtaining the secret codes, you will need to collect the Drawer Key from the lower level of the War Room.

CoD Black Ops 4 Zombies: Classified Walkthrough

The key can be found hanging on the wall inside a small box, between the Cola perk machine and the ICR-7 wall-buy.

Now that you have the Drawer Key, you can start to find the secret codes that are hidden across the map. It is worth noting though, the secrets codes for this particular map are different for every player, so you will need to note down the codes.

The secret codes can be found at the following locations:

Code One: Main Offices[edit]

CoD Black Ops 4 Zombies: Classified Walkthrough

You can find the secret code inside the desk that is directly in front of the Main Office entrance.

CoD Black Ops 4 Zombies: Classified Walkthrough

Use the key that you just obtained to unlock the Desk’s drawer and locate the picture of Der Riese inside.

Note down the four-digit code.

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Code Two: Panic Room[edit]

Before you can head to the Panic Room, you will need to activate all four Defcons in a specific order. The order of activation is as follows:

CoD Black Ops 4 Zombies: Classified Walkthrough

  • War Room: Upper Level – Located at the back of the upper level, the first switch can be found nearest to the large monitor and Spitfire wall-buy.

CoD Black Ops 4 Zombies: Classified Walkthrough

  • War Room: Server Room – Located towards the back of the lower levels of the War Room, you will find a switch that is located directly at the back of the Server Room upon opening the door.

CoD Black Ops 4 Zombies: Classified Walkthrough

  • War Room: Upper Level – After coming up the stairs of the Upper Level, turn to your right and you will see the switch.

CoD Black Ops 4 Zombies: Classified Walkthrough

  • War Room: Lower Level – The final switch can be found when heading down the left set of stairs. The switch will be located directly in front of the stairs as you come down.

With all four switches correctly flipped on, head towards the teleporter in the War Room and step inside.

CoD Black Ops 4 Zombies: Classified Walkthrough

Once you are inside the Panic Room, you will be required to interact with the TV that has static on the bottom row.

CoD Black Ops 4 Zombies: Classified Walkthrough

The TV will then slide back into the wall and will display a picture of Kino Der Toten and will reveal a four-digit code that must be noted down.

Code Three: Deserted Hallway[edit]

Located on the top floor of the map in the Deserted Hallway, you will find a room that has four former American Presidents.

CoD Black Ops 4 Zombies: Classified Walkthrough

In order to reveal the third code, you will need to shoot the portraits in a specific order.

However, to have the code appear you will be required to use an explosive weapon – which can be obtained by Pack-a-Punching your starting weapon.

The order in which you are required shoot will be one of the two following orders:

  • Franklin, Lincoln, Hamilton, and Franklin.
  • Washington, Hamilton, Franklin, and Lincoln.

CoD Black Ops 4 Zombies: Classified Walkthrough

If shot in the correct order, a picture of Shi No Numa will appear with a code beneath the George Washington nameplate.

Code Four: Laboratories[edit]

Make your way to the Laboratories and turn on the power.

CoD Black Ops 4 Zombies: Classified Walkthrough

In the Weapon Testing room, you will find a large metal container with a yellow sign that reads “Attention“.

CoD Black Ops 4 Zombies: Classified Walkthrough

Throw a Frag Grenade or Acid Bomb behind the large metal container and the picture of Shangri-La on the side of the window will now display a four-digit code. Note this code down.

CoD Black Ops 4 Zombies: Classified Walkthrough

With all four codes now obtained, head back towards the War Room: Lower Level and use the large panel that is in the middle of the room.

CoD Black Ops 4 Zombies: Classified Walkthrough

Enter your four codes by shooting at the numbers on the screen to change them and hold square to submit them.

You must enter the codes in the following order:

  • Shi No Numa
  • Der Riese
  • Shangri-La
  • Kino der Toten

Once all four codes have been successfully entered, the pentagon announcer will inform you that Project Skadi has been successfully retrieved.

CoD Black Ops 4 Zombies: Classified Walkthrough

An image will appear on the same monitor that was just used to enter the four codes.

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Once you have entered all four codes, you will need to follow the Pack-a-Punch steps that you used to teleport to Groom Lake. Once you have entered Groom Lake, simply survive three rounds.

CoD Black Ops 4 Zombies: Classified Walkthrough

Once you have survived three rounds, the area to the left of the Pack-a-Punch will now be available to enter.

Enter this area and open the suitcase in the corner, here you will receive a weapon named Winter’s Howl.

CoD Black Ops 4 Zombies: Classified Walkthrough

Interact with the weapon and you will be awarded the Cold War Remedy trophy.

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