I am experimenting with Vallejo airbrush colors they have a tank set (though I don't think specific to any type of armor); I am still mixing in some Windex and trying to find the right formula for me. However I am trying these on miniatures, as I have extensive experience with them on minis. I airbrushed a bunch of Soviet Flame of War tanks seems to go fine even when I'm doing too high an air pressure setting or pooling paint in an area: it still dries pretty nicely.

Have not tried the airbrush color by itself with out thinning, but generally stock Vallejo even the model colors will definitely need thinning.