When you start using an auger/chainsaw all game sound fades out to a heavily muted state.
When you release the trigger the sound fades back in.
- If necessary, create a folder “Mods” in steamapps\common\7 Days To Die
- Unpack ZIP into the Mods folder so that you see steamapps\common\7 Days To Die\Mods\Gazz-RevolverSilencer (as an example)
Go nuts. Copy or alter in any way you see fit.
The forum topic of the mod is here.