In general, it doesn't really matter where you "file" it, because in the end it's just as much a green threedrop as a white threedrop as a selesnya threedrop (kitchen finks ofc.)
even if your cube's color-distribution is "off" as to speak, it doesn't really matter if it doesn't have a direct impact on gamplay.
having 1 or 2 more green cards than there are cards in other colors isn't going to cause any real problems, for example.
So wether the militant is a white 1 drop or not, it doesn't actually mater because even if white had 2 more drops than the other colors, nobody would notice. (actual packs have far more variance than that)
even if your cube's color-distribution is "off" as to speak, it doesn't really matter if it doesn't have a direct impact on gamplay.
having 1 or 2 more green cards than there are cards in other colors isn't going to cause any real problems, for example.
So wether the militant is a white 1 drop or not, it doesn't actually mater because even if white had 2 more drops than the other colors, nobody would notice. (actual packs have far more variance than that)