I hear you! 
Green it will be...........
The link provided definitely shows a wide variety of green/OD paint color. I have always heard there was a big difference in how the OD faded.
My question centered around if the Marine Corps was still painting their equipment Green instead of OD during the Korean conflict. From the shade variety in the picture it looks like just about any color of green will work for either as long as it's "sort of" close.
I should be able to paint the tank in the standard Marine Corp Green. Just to break up my collection of OD colored tanks.