I wanted to take up the challenge of doing modern US Army troops, in what was at the time the field uniform, in UCP camoflague. Between the color scheme at scale, and the dot patterns, it was a GREAT challenge, having to paint and strip several times before I arrived with a technique that yielded the results I wanted. For your amusement...
The scheme is a basic light gray, with light green/gray and "Feldgrau" blotches mostly oriented in a horizontal plane. I washed the helmets, crotch plates, body armor, elbows and knees in brown to mimic the dirt and grime, and how some uniform bits may be washed more often than others.
Now, just when I thought I had accomplished something, now the Army comes up with "unicam"... and I gotta start all over again.
I intend to use these for the new Force on Force modern skirmish rules. I'm going 20mm, and it should be awesome!!