Whenever I go to the "Host Server" menu and try to start a server, the game immediately crashes when I click start ... I've tried changing some settings but to no avail. Any ideas?
This happens, for some maps, in TC:E too.
this often happens when u got a lot of custom stuff (maps, sounds/weapons,...) i would suggest temporarily move all custom pk3's (yy_, zz_.. obj_..) to a seperate folder (eg. custom maps), this should let you start a server properly.
as for cqb its basically the same, make sure u dont have any non-official stuff in the folder (maybe dl'ed,.. by accident) and as merlin said, clean out ur etmain folder from 3rd-party pk3s as well.
optional (not needed but cant do any harm
): add this to the autoexec.cfg
set sv_pure 1
set sv_official 1