Nice job on the Humvee!
Here's my stab at the digital camo - although my Humvee is the TAG one, and the gunner is a converted Eureka Bundeswehr:
Basically 3/4 tones of grey - my middle colour is Foundry slate grey, although don't get too hung up on the tones, as apparently the uniforms fade pretty quick in service. Left the body armour green, as i'm doing quite a few of these, and wanted a bit of variety.
Say hi to the boys down at the Irregulars for me, next time you are down there - saw Steve, Dave, Tricks & Lau on Sunday, but couldn't stop for long as had the kids in tow.
Regards
Matt P.