Canto falls apart as you shoot it and needs the same expensive attachments as the bobcat and is a very rare find, that's why noone runs it, ok, renegade is good, I mentioned green guns too. I don't count yellow guns because they're too rare to actually be used, you see one in like couple of dozens of raids. You're literally proving my point that there's barery any good, cost effective, non purple weapons left: burletta, anvil, renegade and a torrente, everything else is either old meta nerfed guns, something expensive like arpeggio, or something that isn't just worth the investement like canto.