what does it look like through nvgs?
It depends on the type of NODs you use (ie Gen1, Gen2, etc). Through Gen1 they look just like that, but green(er). The part of those thats "night camo" is the IR absorbing treatment. However, that washes out after awhile. They were supposed to absorb IR illumination, rather than reflect it.
If you are creating a Desert Storm outfit, I'd just get the parka made of that material. I've never seen anyone wearing BDUs made of that stuff, but remember seeing alot of guys with the parka. Airsofter1 has one that I'm sure he'll take pictures of.