guude,
das hatte ich mal für unsere amerikanischn freunde recherechiert:
drab green matching swissmogs?
the very old ones had 89020 schattenschwarz (shadowblack) based on alkydlack, they changed to RAL 6014, gelboliv (yellowolive) corse the alkydlack is not resitant to chemical weapons.
RAL 6006 Grauoliv (greyolive) is quite close too.
all colors should be stumpfmatt. (extraflat ?)
http://www.jpsmodell.de/katalog/jpsral_e.htm
here in europe the colors are still to get, though it's difficult to get stumpfmatt.
some guys here help themselves by using a fine scotchbrit after paiting with flatlack.
gut mog, justus.