Thank you for contacting Bethesda Support. I understand you've been experiencing achievements issues with DOOM, and I'm sorry to hear that you're having trouble. I'm going to do my best to get you into the game as soon as possible!
We are aware of an issue with the trophy "IDKFA" and are working on a fix for a future update. If this trophy is not unlocking for you, you should double-check to ensure that you completed all of its requirements and log out and back into your PlayStation Network account. In some cases, issues with the network can delay the delivery of certain trophies.
As a workaround, it is possible to trigger the trophy by starting a new game and completing any mastery on any weapon.
Thank you for your patience and support!