The plugin was playing a rank up musik to the player when he ranks up.
This sound was overlaying all the game sounds so that you could not hear anything else (e.g. a hunter sneaking behind you)
I have removed this music.
The sound file (kind of a bell) playing for all users is still active.
The method call used in the plugin (
[You must be registered and logged in to see this link.]) has a lot of parameters.
Maybe playing of this music could be adjusted so that it does not hide the game sounds.