To be able to unlock the "Endstation Historian" Calling Card in Call Of Duty: Black Ops Cold War, there is a range of intel to be found.
The intel is scattered all over the map and includes documents, artefacts, audio logs, and radio transmissions.
Once the power has been activated, here's how to find the Requiem Intel.
Audio Logs
Audio Log 1
- Head into "THE PARTICLE ACCELERATOR"
- Then look at the stairs which is in front of "THE MAIN SUPPLY"
- Go right and you will find the audio recording on a register.
Audio Log 2
- Head into "THE PARTICLE ACCELERATOR"
- Go to "MAIN FEEDING"
- Then on your left next to the button to turn the ignition back on is the last audio recording of the Requiem
Artefacts
Artifact 1
- Kill two megatons
- When they die two magnetic cards will be dropped
- Then, go to the "ARMS LABORATORY"
- Go to the level of the machine where the window is broken, to insert the access cards
For everything related to secret documents, there is currently only one way to unlock them.
It is by killing the Megaton, a mini-boss that appears in Round 10
This is the point where you will be able to recover an access card that will allow you to make the D.I.E Wonder Weapon or secret intelligence. These challenges are quite random and complicated, so it's only normal if this task may feel quite slow in its progress. It's meant to be a challenge after all!