For most of modern times much of the Americas, outside of the US that is, used some form of OG/OD colored uniforms. Special units, not necessarily "special forces" per se, wore whatever happened to come into their hands. For the most part those were short production runs or small overseas purchases, which weren't maintained long term. Jungles and deserts are horrible places for uniforms, so couple that together with other factors (like dictators not liking civilians with military stuff) it's not surprising there isn't much camo stuff out there for us to collect.
The Brazilians have only two mass produced camouflage patterns which have remained consistent throughout the years. Not surprisingly, those are the two you mentioned Steven
I'm told the Airforce pattern is actually quite difficult to get within Brazil since it's a small force which is not generally near urban populations. I actually just got a set of trousers in this pattern last week for the first time (to be fair to myself, I've not really tried all that hard before
There are many different cuts of the Army Lizard pattern on different materials. I'm aware of heavy cotton twill, thin cotton/polly, and some type of ripstop. So there might not be a lot of variety in the patterns themselves, the uniforms themselves are found in probably a large number of different cuts.