Since I was downloading the Q3 remake maps for UT/UT2003/UT2004 and UT3 anyway, I thought I'd post the updated links I found for UT2003/UT2004 in here (if a map is not listed, then I couldn't find any versions of it for UT2003 or UT2004):
I knew an Invasion server called InterHouse 3 years ago, it had if not ALL, almost every map from a Quake game. And also the monsters were taken from Quake as well. But now it's not on anymore, I'm just here to tell you that there is a load of them but Idk where they are right now.
Even thought, there are still half a dozen online I believe.