Hi Aslain,
Upgraded to latest version on 1/12/2016 and the bell sound when your gun reloads was replaced with the "up" sound as well as some other voice sounds. I tried fresh install, etc., of the modpack as requested in your bug reporting thread. Attached is the _Aslain_logs.zip and python.log.
Thank you! The "up" I can live with but the other voice sounds with it grate on my nerves.
_Aslain_logs.zip
python.log