these files are required in order for the skins and models to work

if you have already installed these files from one of the other models, GrexRanger, GrexTech
or GrexGunner, you dont need to install them again
[Installation]

The following files should be extracted into these folders in the UT2004 directory:

\Animations\Heartmesh.ukx
\StaticMeshes\Humangibs.usx
\Textures\Humangibtex.utx
