Thank you Phil,to make it right i use alot of different of brands of rusty colors.
Vallejo : Hull Red,mahogany brown,black red(all from model color),Rust,orange rust(air model)
Mig pigments : African Earth,old rust,light rust,Standard rust
AK : rust streaks,dark mud,fresh mud
Lifecolor : rust1,rust2,orange
and for underground German red brown primer