160th SOAR Littlebirds (and all 160 SOAR Birds) are painted flat black, MM Aircraft Interior Black is the best color to use. The black quickly fades, so a drybrushing of a really dark gray to give it the faded look is also in order. For markings, all they usually wear are United States Army on both sides of the tail boom, 5 digit # in the sail, and last 3 digits of the five on the sides of the tail (rudder), and on the nose. I have also seen them with the words "NO FEAR" in script on the nose as well. The above markings are either in a glossy black or a dark green.
Hope that helps, but the OD green with black racing stripes sounds cool too!!!
Gino P. Quintiliani - Field Artillery - The KING of BATTLE!!!
Check out my Gallery: https://app.photobucket.com/u/HeavyArty
"People sleep peaceably in their beds at night only because rough men stand ready to do violence on their behalf." -- George Orwell