When I try to play the map from the maps folder I get this message:
UT2004 Build UT2004_Build_[2004-09-21_19.13] OS: Windows XP 5.1 (Build: 2600) CPU: GenuineIntel Unknown processor @ 3003 MHz with 1023MB RAM Video: RADEON X700 Series (6553) Failed to enter C:\UT2004\Maps\ONS-UP-OperaHouse.ut2: Can't find file for package 'PC_UrbanStatic' History: UGameEngine::Init <- InitEngine <- FMallocWindows::Free <- FMallocWindows::Free
What does that mean?
Have you installed the Editor's Choice Edition content?
Hmm, that's what solved my problem with it. I guess I'm out of ideas already :S