ut 2004 has preloaded servers. As do other similar fps games. Including some older battlefield or cod games on pc. The game doesn't have any other menus so we couldn't even say if it goes beyond CTF. There are some games that specific to game modes like that especially if it's close to the original doom or wolfenstein. But this game seems more like a ps1 game which would have CTF DM(ffa) and TDM. But nothing implies beyond ctf. A server typically would have multiple game modes that the host could alter. It would seem its a CTF game which throws everything under the bus. Its impossible to say what's going on I mean we could be completely far off.