very nice, i can see myself getting this in strange on a minigun

I see what you mean with the black texture, it almost looks oily now that I'm looking at it closer. I'll make some hotfixes since I wanted to update the brushed metal on the brass anyway.

i'm not a big war paints guy but this is awesome

i love this, especially the parts of the darker brass color, really helps separate pieces of the weapon in a subtle way. i do agree with the criticism on the black color though

For the black section I would like to see changed a little bit. Its the right paint style but I think the colors don't fully blend in well and I see some noticeable blotches on some of the weapon models which don't look the best. (Panic Attack shows it on the stock, so maybe pick closer shades of black perhaps?)

Its a great idea and pretty well executed, just a small patch and its good to go.

but make the colors closer to other brass textures, matbe like iron wood

two things, omg look at my australium, second, i like it, its actually a cool concept

For brass it's fairly dull. You should Amp up the albedo tint just a bit more maybe and add some more metallic detailing to it like a couple scratches and mild tarnishing.