The OD used in WWII is completely different than the stuff used in Vietnam. At least in the post advisory period.
The OD on the ammo cans and used to paint out the white star is the older WWII shade. The base color of the 113 is markedly darker, even under all the dust.
This post Vietnam M60A2 is in the same base color, Dark OD. Compare the mounted Searchlight's shade of the older OD.
F is for FIRE, That burns down the whole town!
U is for URANIUM... BOMBS!
N is for NO SURVIVORS...
- Plankton
LSM