I have no gun sound´s when i install the mod with your modpack.
After i downloaded the mod from the modhub and instaled it maualy, the gun sounds works fine.
Maybe there are some missing or wrong files in your modpack?
I can install the mod but it dosent work, and i have the standard game sounds.
After i downloaded the mod seperatly from the WGN mod hub and installed it manually, the mod works fine.
Maybe there are some false links or files in your Modinstaller?