If you want different music for a tad, you can check out my music mod:
http://www.battlefront.com/index.php?option=com_remository&Itemid=314&func=fileinfo&id=92
It's more Syrian in nature and for the deployment screen even heavier middle eastern thrash.
The End Game music is very WWII (a foreshadowment), mellow, classical... a requiem if you may...
(you can't change the very first opening splash screen)
if you find you like one more than the other just dupe the one you like and rename the file to the one you don't and plop them in the Z folder. But hey hopefully you'll like them all! .
-Lon