I don't have much info on the camo. I have seen several different paintschemes on 213's birds. red spinners, white, 2 tone brown, brown and green, spaghetti etc...
I do know these planes were generally clapped out European fighters and from what my uuncle tells me, supplies in the desert were scarce including paint. That may explain why some planes were very different.
I agree with the above posting about confusing the Italians and I heard it made it tougher to aim at with this camo. All hearsay as I wasn't there (darn).