questions about file names

so... i started creating a few mods with the pdmod tool. i already made one or two simple texture mods. now i wanted to replace the "Raptor Polymer Body" for the AUG with the Standard Body, but i cant figure out which file these are. the closest i got is "wpn_fps_aug_body_aug.unit"
i know this is propably a completely noob question, but i hope you guys can help me :)
Replies

Simon
You can easily do it using a pdmod. But doing it through lua is much better ;)