The only real difference I would see is in application of any gloss and flat coats prior to and after decals and washes. And that is easily replaced by rattle cans of those items. Dot filters are a good option to color modulation, and unless your AFV is sitting still like a gate guard with one side always away from the sun, most of your upper surfaces will weather and fade pretty much the same. The vertical will only fade to a slightly lesser degree than any vertical or angled surfaces... At least that was the rule on those I came across in my time with them...