You can use UCC.exe in the UnrealTournament\system directory just type:
"Ucc.exe batchexport <the package name goes here> class uc <directory you want it extracted to>"
there's a lot you can do with UCC batchexport:
Here's the Command:
UCC batchexport <Package> <Item Type> <Extension> <extract Dir>
Packages can be files like .u, .umx, .uax and .utx
Valid item types are: Class, Texture, Sound and Music
Extensions are:
uc, for Class
wav, for Music and Sound
and...
pcx or bmp, for Texture