Full Servo Skull Guide: https://standardof.net/games/space-marine-guide/servo-skulls/chapter-9-the-weapon/

This video walkthrough shows where to find both servo skull audio logs in chapter 9 of Warhammer 40K - Space Marine "The Weapon" for players looking to attain the Lexicanum and Librarian of Macragge achievements.

Timestamps:
Skull #3 Personal Message: Worker Nathaniel [3/5] - 0:00
Skull #2 Audio Log: Medicae Station Ventris [5/5] - 0:47
Skull #1 Battlefield Log: 2nd Lt. Mira [3/5] - 1:35