A new patch for UT2004 has been released, 3339. There doesn't seem to be an official linux patch yet, however, there is a beta patch at http://0day.icculus.org/ut2004/ut2004-lnxpatch3339BETA.tar.bz2. This is needed for the Red Orchestra WWII mod, which should get into portage after this patch. Note- "This patch should be installed *after* installing the Epic ECE Bonus Pack, as it updates some of the game code included with the bonus pack." This means that the ut2004 ebuild should automaticly install the ECE bonus pack too.
I'm not adding a BETA patch... Also, there's no need to file a bug for ut200*, I keep in close contact with Ryan