With this mod, you can either silence the annoying glass cutter sound on The Diamond heist or replace it with something special ;)
Installation Instructions
Unpack the files
Copy the folder of the mod you wish to have (NOTE - you can only use one mod at a time)
Copy this folder in the "mod_overrides" section in your Payday 2 directory
(example) Steam/steamapps/Common/PAYDAY 2/assets/mod_overrides/paste folder here