While we can rip the textures from the game, we CURRENTLY have no way of getting them back in-game.
So for now, to make Reskins just use TexMod =]
TexMod is a very simple program to use but is very effective!
You rip the textures from the game you want to edit, use a program that can modify the texture format you ripped the texture as, save them, pack them up using the "Packing Build" button, then you can release the file it makes!
You need an hexadecimal editor just copy and past the header from your original bct into your dds and remove the .dds extension
I tested to edit the textures directly that's work but with strange bug:
My step by step:
1. I converted the chest_default.tex with quickbms to dds 2. I extracted the chest_default.tex with Gibbed's tools 3. I edited the cr_jacket_cm.dds with xnview (just add a wave effect) 4. I use Ultra Edit for copy the coding header of cr_jacket_cm (from Gibbed's tools) into the edited cr_jacket_cm.dds 5. I rename cr_jacket_cm.dds into cr_jacket_cm 6. I build back chest_default and rename chest_default.tex 7. I copy my new chest_default.tex into npcs and build npcs.big
I edited the original dds file cr_jacket_cm.dds from quickbms script and adding the header from the cr_jacket_cm file from Gibbed's tools into the dds but i suppose the problem come from the other textures like normal maps...