[FA_Cheech]

I don't know if this information would be any use to you;
My dad was a gunners mate and served as ground crew on Espiritu Santo. I once asked him about the marsden matting. He told me that because of the holes in the matting, the dirt and dust very quickly worked their way up and made it appear indistinguishable from the surrounding dirt or coral. Not like the weird black stuff we have in the game's current maps.

Thanks Murph, that information corroborates what we have seen in period photos.

FA_Monguse has provided the community with a custom texture for the marsden matting to mirror that look. Will provide to Fly_zo tonight for check-out and posting.