How would I go about making a Luigi costume have a different fireball?

[shikamaru12]

I downloaded a Dr. Luigi skin http://forums.kc-mm.com/Gallery/BrawlView.php?Number=202964 and it came with two textures named MarioPill1 and MarioPill3. How would I make only that Luigi skin shoot pills instead of fireballs? It also came with a FitLuigiMotionEtc file too. Dr. Mario is a skin in Project M that shoots those specific projectiles, so couldn't I make the Dr. Luigi one do that too? And if possible, how could I make the sound be the one when Dr. Mario fires a pill just for that costume? There was no FitLuigi.pac included, just FitLuigiXX.pcs, FitLuigiXX.pac, FitLuigiMotionEtc.pac, MarioPill1.png, and MarioPill3.png. Thanks.

[King Scourge 99]

You can't, the fireball is located in the main FitLuigi.PAC File
the textures you found are used to replace the fireball in the main file, but that changes the fireball in all the costumes.