How do you drybrush kits with camo patterns? Do you just use the base color + white?

You can lighten the base color, or you can try what I and a few others I know do. We drybrush with Testors Model Masters sand color. It is light enough do do it's job drybrushing, and it is neutral enough that it blends with the color you are dry brushing over.

I always dry brush with oils,no matter what medium i am using,white will do fine for camo,oil paint won't clog up the brush as you work,dip the brush in the paint,then wipe the brush over your thumb untill you can hardly see it,the paint i mean,then you are ready to go.
Arthur

so do you dry brush over the entire model , where their are nuts and bolts, anywhere where their are raised areas?...i have completed a Challenger 2 but due to it being black and dark green, not much of the detail is brought up. Would dry brushing with white improve the model a lot?

Ciao W-D,
I would not suggest highlighting or drybrushing with straight white color. You could use the white to lighten the base color, and then drybrush. That way, you have the base color and then the lighter color to accentuate the nuts, bolts and raised areas of the vehicle. So, you would lighten the green color and drybrush that particular area with that color and then lighten the black color and drybrush. If you have dirty, dusty, muddy areas, then you would lighten those particular colors specifically. I hope this makes sense, because I am starting to lose myself, here.
Ciao for now
Rob

I seem to have lost the thread i thought camo patterns meant figs my fault,but true dry brushing in white is the best way to highlight,it just takes practice.
Arthur