im looking for the files for the sith commandos,sith troopers, sith officers, republic soldier, so on and so on for a reskin,
where can i find the files?

You can find all of those files by going under ERF - TexturePacks - swpc_tex_tpa.erf

You will get a list of alphabetical letters, go to "N" and then scroll down untill you get to N_(insert name here).tpa. The names of the files you are looking for will look something like this N_Sithcom01, N_SithOff_F, N_SithSoldier01, N_RepSold01. Just keep scrolling through those until you find the one you want.

Hope that helps.

-Doc