Don't want to defend anyone here, but Brazilians, Mexicans, Chileans... Well, I'm not a master in pvp to say that, but some of them tend to use aim bots, lag switch and other glitches to take advantage. But not only them! We can't specify a nationality. The cheaters are everywhere in this game. Activision's fault, in my opinion. You can't say that Brazilians, in general, are cheaters. We play just like other people. Unfortunately, there are some of us that cheat. Maybe, among your people, there are cheaters too.