is it possible to upload sounds that can be set to go off when certain things happen during games like HOLY SHIT! n stuff like har har wen on threewave???
long answer: no that is not possible, unless you create a Mod which runs on the server and every player on the server has it installed (otherwise they can't play on that server). It probably even involves coding in C++
I'm so glad quake 3 went with pure servers. I fucking hate how every other game like cs let's these kiddie admins upload stupid ass sounds like the simpsons nelson 'haha!' or some stupid fucking jingle that would play over and over every 10 seconds (mostly when someone got a headshot or suicide). That alone makes you cringe in discust and want to quit playing those games.