Actually the Olive Green/Brown camo is incorrect rather. As memo serves the mistake was made years ago while the shots of the 9 IAP planes were analized. These kites looked lighter than those earlier LaGGs in the Green/Black colours introduced in 1941. So it was assumed it had to be just the OG/B paints. However later it was found that the pics were taken later 1943/ 1944. And the LAGGs were said to be of the plant of Tbilisi production and type 66. This led to the changing of the camouflage colour to the grey ones that were introduced in early spring of 1943. IMHO the grey camo AMT11/AMT12 is correct.
View attachment 776600
View attachment 776601
the source:
LaGG-3 of 9 IAP