what's the briefcase's password? i have been trying every single combination of 3/12/21, 73 and 19/1/9/91 in every order
You need to read the documents and their descriptions, and use the succession printed on the wall.
First Document > Second Document > Wall
Were you able to get it? One document has "43" in its item description, another has "73" and no matter the order I can't get the lockbox open
You're missing the number on the wall, buddy!
