Once again, another question

Ok, now I understand. If you refer to your other post "how to get good weathering", all of the techniques described in that post with bring you to an end result much like that pic. It takes a series of good weathering techniques to achieve the look there.

id like the look senn in this tank

http://www.ww2modelmaker.com/modelpages/DNpang.htm

where the paint seems to be dull and faded, like the rain and weather has taken its toll.

Not 100% sure if I understand what you're looking for with this post. Do you mean where the entire tank has a faded look to the paint surface in comparison to a fresh, just painted look?