Exploring Vahlen's command center | Mission 6 - Kasserine Pass Sniper Elite III Guide

Collect the note from the command center

After you walk inside the command center, look, in the first place, for the two supply crates. Collect the valuable items and, only after that, approach the marked table, on which there is War Diary - Note from Vahlen: In My Absence. Learning its contents allows you to determine that you will have to obtain a document with the combination for the safe here.