Basically I need some one to explain how to work on ADDING colored variants to the TF2 weapons. I know this is possible as I've made a submission using Fade's edited/hacked Disguise kits. Which originally only use one Disguise kit texture. However this one uses two, so obviously THERE IS A WAY TO DO IT. Every other thread I've seen out there says "No it's impossible."
I've asked two of my friends that model, neither of them could get a method which works. Renaming vmt and vtf files with the red and _blu/blue extensions doesn't work, as off the bat the model's coding in the qc file won't be looking for those file types. I've decompiled and edited a qc file for example the Spy's revolver, to use red hands, blu hands, and vrevolverred, vrevolverblu but the closest I get when I recompile is a model, which can choose between Skin 1, and Skin 2 but it has the missing texture if I remove v_revolver, and always has Red sleeves.
The only thing I can think of, is opening the model in a modeling program itself and figuring out if you have to apply the texture in there. However I would be lost, as I don't actually remodel yet.
Next step is probably emailing some one from Valve, since if people really do know how to make team colored edits, they're doing a pretty good job keeping it secret.
Thanks to any one that helps. I'd probably do something for you when I buy ripe.