it has taken a long time for me to realize this module and I know it's a bit late to put some effort in creating something like that for UT2004. But better now than never.
AntiPiracy gives the mapper a simple opportunity to save the map's original name and original author value.
The protection will disable online(/lan) play on a map, if someone else changes the mapname totally, so that the original mapname string cannot be found anymore. This gives clans the ability to add tags behind, or before the mapname, as long as the original mapname won't be touched.
Moreover if the author value has been changed, the supervision also disables online(/lan) play. So this value mustn't be touched, even tags or further author names aren't allowed either.
Offline play won't be supervised, so for offline usage only, everything can be changed as usual.
Look the readme up for more information, and to get to know how to set up protection.
Finally, I want to thank Wormbo for multiple helps on that project.