Following the Anouncement under "http://forums.gungame.net/viewtopic.php?f=0&t=2431". Setting the gg_soundpack to no_sound. I am not using gg_assist module. Mani and Mani Quake_sound pack are both disable for now. I am not running SM / MetaMod.
If either custom Addons "gg_nocash" or "gg_quake" are enable, they will either one of them cause the server to crash with the below:
threadtools.cpp (2644) : Assertion Failed: Illegal termination of worker thread
'SteamFindServerThread'
Assert( Assertion Failed: Illegal termination of worker thread 'SteamFindServerT
hread' ):threadtools.cpp:2644