Rob:
Nice looking figure, great job on the highlights and shadows. The hood and Shoepacks look good too....
To the ammo belt, still looks a little too OD to me (please take this as it is, just my opinion) this is generally the color I work for, though I'm sure there are hundreds of color variations (I find testors Israeli Armor Sand is a pretty good match).
Are you finding plates/photos that are showing the canteen cover and ammo belt in a more OD tone? If so I'd love to know, a teachable moment!
To give credit where it is dune, I found this photo at one of my favorite on-line shops ....
http://www.sportsmansguide.com/