The MERCD Camo color combination was also set by your theater of operation. If you were going to fight in Europe or Korea your unit panted the Woodland or Winter US and Europe pattern of Forest Green, Field Drab, Sand, and Black. If you were going to be in say a warmer climate like jungle setting then you got the Woodland Summer of Forest Green, Light Green, Sand, and Black...then there were desert combos like Sand, Field Drab, Earth Yellow and Black.

If you want to go with the MERCD Camo you have options as to color combinations.
Or you can do what many Guard and Reserve units did and just paint the vehicle Forest Green and be done with it. Saw many M880s like that sitting in Armory motor pools.