Hi Phil:
Looking at the two middle photos, as you say, they are of the same vehicle- Z4214033 and it is definitely camouflaged... in photo 2 look at the seam between the roof and the rear body panel. you can see a definite colour change a few inches below it. I would suggest that Unit 4's recording van definitely had a cam pattern. As you can see in photo 3 there is a broad band of colour running almost vertically through and below the middle window to the wheel well. Looking back at photo 2 you can see the same band once you know where to look! That would be consistent with the directives for painting the invasion 'fleet' of vehicles. There were many patterns authorised and Mike Starmer has done a better job of recording them than I can do here.
Its interesting that the green with black bands became the standard British cam for years afterwards (notwithstanding the shiny bronze green years!).
You may be onto something with photo 4: it looks like DND32033 on the bumper by the way, as it is definitely the mickey mouse ears cam pattern. It also has a civi licence plate- GGU 5??. British plate experts should be able to ID it for you as they have detailed records of all plates back to the start of plates... you know what I mean!
Mike
