Call of Duty has a secret that gives you a big head start – but only if you solve an impossible puzzle

IT’S Call of Duty launch day and everyone is eager to dive in and play the next instalment.

The wait is over and Call of Duty: Black Ops 6 is finally here, with what people are calling the best campaign in decades.

We’ve gone hands-on with the game and found a trick to get three upgrades before you even start your missions.

If you want to go in locked and loaded here’s what you need to do.

COD BO6: Safehouse Boiler puzzle solution

In the basement of the safehouse you can find a boiler in the second room with vague hints on how to solve it.

On the far right is the Pilot, in the middle is the Boiler tap, which regulates water flow, and on the far left you have the Fuel tap.

• First, turn the Boiler tap off to stop the water flow entirely.
• Next, use the Fuel tap once to set the Fuel gauge to halfway.
• Now, use the Pilot to start the flame.
• Finally, use the Boiler tap and turn the water fully on once again.

For the next step in this long puzzle, we’ll go to the Music Room next to the main hub.

COD BO6: Safehouse Piano puzzle solution

In the Music Room you’ll find the Blacklight on a table. Activate it and you’ll see footprints on the floor.

Above the piano you’ll see the number 1 and an arrow. Following the arrows you’ll see five notes total that need to be played on the piano:

• 1 Ми
• 2 Ре
• 3 Си
• 4 До
• 5 Ре

If you use the Blacklight on the piano, you’ll see the same letters on the keys. Play the notes in order to unlock a door next to the piano.

Go through the door and down the hall to the right and you will find a door with a keypad. That’s the next puzzle.

COD BO6: Basement Keypad puzzle solution

If you use the Blacklight on the keypad, you’ll see the numbers used most often.

This puzzle works like Wordle, where you input a code, and then check it with the unlock button at the bottom right to see how many numbers were correct.

The solution is random, so you’ll have to try out a few number combinations for yourself.

COD BO6: Safehouse ASI Code Decipher puzzle solution

Next the game gives you a code in the top left and you have to enter the correct letters in the cipher.

For example, in our game, code word “4996” resulted in the word “ROOM”.

Each of the ciphers is actually a word, and this is the same each time, so if you want to skip the cipher challenge, just spell out these three words:

• ROOM
• BUNKER
• OPEN
• HOLDING

When exiting the keypad door, turn right and go into the door on the left.

COD BO6: Safehouse Lockpicking puzzle solution

The next part is a lockpicking minigame. Hold up on your control stick and move it slowly until the lock pins glow.

Hold that position until it sticks and you can move on to the next pin.

Once inside you can grab the key from the table and this will unlock the other locked door down in the basement.

COD BO6: Safehouse Radio Signal puzzle solution

Approach the oscilloscope and adjust the wave so it matches the other one.

The radio will begin to play on repeat, and the message is the combination to the safe upstairs.

COD BO6: Safehouse Safe Code puzzle solution

Turn on your Blacklight and note down the numbers on the objects listed in the message on the radio.

This is also random, but for us we received the message: “She stood in the dim light of the lamp, weeping at the family crest. Somewhere nearby, folk music played from a record. The girl’s tears fell to the rug below.”

Once you have the numbers and the order you can type the code into the safe in the upstairs bedroom.

Completing this puzzle will give you $1k for safehouse upgrades, and unlock the ‘The Puzzles, Mason’ achievement.

If you want to read more about the series, check out how some legitimate Call of Duty players were banned.