Under you server config files go to the map rotation file and make sure that the level rotation name is anything but custom. When its custom you can change how the game is played by yhe weapons and the maps and time lmit ect. Once you switch to lets say Crash its a crash pod match and follows the ranking rules so you cant change the other stuff. Once its a ranked you can only change the "Details name" and "motd". It took me a bit to figure it out but its there. Hope I explained it good. And look for the RCON post in the gameservers.com forum so you can monitor your server and kick and ban people.