How to crack a server?

Hello people, I'd Like to know if someone knows a hack to hack a CoD server so I can have my own (CoD2) server (me and my friends play alot and it is so annoying when someone joins the game so we got to vote everytime). well yeah that's probably the question thanx if you can refer me to maybe another topic or whatever anythin' is much apreciated (:

try cod 4....you can do it on that...it is alot better than cod 2