I managed to get to grips with mottling after a couple of attempts, but i have put off that Wallenmuster scheme for years, but will have to tackle it one of these days.
I would deffinmetly like to see some 1/72nd ground crew figures, both WW2 and modern. There are a lot of ground equipment sets around but very few decent figure sets and the ones that are out tehre are hard to find.
British army does not use NATO colours. The green should be Deep Bronze Green. I use Xtracolour 814 and looks a good match. Humbrol also does one, 75, but not tried it myself.