>>96208812
>>96209023
Going by the examples, all military camouflage patterns fall into "Basic Camouflage", while "Advanced Camouflage" is mostly high resolution prints of tree photographs, which is, in fact, overly specific. It matches a specific kind of tree, in a specific season, and assumes stillness. Basic Camouflage works on multiple scales, while Advanced prints de-resolve over longer distances makes them stick out, which isn't a concern for hunting since the assumption is that you'd be shooting from less than 100 m. Also it's just marketing bullshit, so who knows if it actually deserves a +3 to camouflage that always applies within an environment.
I would agree with your opinion on having Basic Camouflage count as Simple in similar terrains though, it seems sensible to me. The easiest way to handle universal camouflage is probably to count multiple environments (+1 CF per) as receiving +2, similar ones getting +1, and whatever is left counts as constrasting.
I treat Limited Camouflage as having the same contrast limitation as regular camouflage.