If you just can't find time to make it through the singleplayer portion of Unreal Tournament 2004, but you just have to have those team symbols... here's how. (Thanks, CrowGoblin)
If you can't wait to unlock all the team symbols by playing through the single player tournament mode, then just look in the ut2004 /system folder for two files, TeamSymbols_UT2003.int and TeamSymbols_UT2004.int and open them in something like notepad, because they are only text files. You'll notice that some have "SP" next to them, meaning they are unlocked through the single player mode, so just take out those so they are just "" and save.