TO INSTALL (MANUALLY):
First of all, make sure you have Malus' "Bloodlust" model installed. Although it was created for UT2003, it has no custom animations, thus it work for ut2004 perfectly.
Place the .utx file in the Textures directory of Unreal Tournament 2004.
Place the .upl file in the System directory of Unreal Tournament 2004.
FROM THE AUTHOR:
I have loved the Bloodlust model since the day it was released for Ut2003. I tried to get in touch with Malus (Bloodlust creator), but unfortunatly was unable to get a response. As of this moment, this skinpack was made withOUT his permission.