need help

Here'ya go..........

  OMD, the link actually works  

You can also fade with oil paint dots,the way The Doog and Wbill76 do.It involves using dots of different color oil paints and mixing them on the model with a thinner dampened brush.Its pretty effective,for a more detailed explanation,just search for"oil dot method"

I would avoid white. I did this on a B-17 last year and it looked bloody awful. I ended up repainting the whole thing and second time around used buff to lighten the OD. Worked a treat.

Add a bit of light gray, white or buff/light tan to it,if you are airbrushing it on. A few drops will do. If you do a base coatof basic OD, and apply the lighter coat on horizontal upper surfaces such as the turret top, engine deck etc. in a lighter manner like a "tint" it will have lightening/fading effect with a bit of practice.