I can confirm it is green grey.
Below is the guide I am using to paint my marines
WWII United States Marine Corps Painting Guide (Vallejo Paints)
By Sonny Smith
I cover all of my figures with heavily watered down 854 Brown Glaze before Highlighting with the same color.
Utility Uniform and Utility Cap 886 green grey
Helmet 887 Brown Violet
Helmet Cover, Camo Smock and Camo pants 821 German Camo Beige WWII
Camouflage
-888 Olive Grey
-822 German Camo Black Brown
Reversible Camo Smock 824 German Camo Orange Ochre
Camouflage
-875 Beige Brown
-984 Flat Brown
Webbing and Ruck Sack 914 Green Ochre
Boots 871 Leather Brown
Gun Barrel 984 Flat Brown
Gun barrel 863 Gunmetal Grey
Leggings 988 Khaki
Skin 955 Flat Flesh
Here is a good reference picture of the Camouflaged Smock and pants:
link
Just a quick note on the Camouflaged pants. The light color of the pants left them to be discarded and the green utilities pants worn instead. This was more of a practical issue more than anything else.
Reference picture for the Utilities uniform:
link
Officer Rank goes on the collar of the uniform. Generally a Platoon would be led by either a First Lieutenant or a Second lieutenant. Enlisted Rank goes on the upper arm above the elbow. A Platoon Sergeant would be a Gunnery Sergeant or a Staff Sergeant. A squad would be lead by a Sergeant. Corporals would lead sub-units of the squad. A note on rank, Most of the time there would be no rank worn on Marines in the field. The Japanese would shot anyone who looked to be in a command position and Japanese snipers would look for officers and sergeants to kill. It is more than appropriate to model Marines without any rank insignia.
Hope this is informative.
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