You can filter the search for servers to include unofficial servers, but when I did so none were listed. I don't know if this means it will not be supported on console or if they just haven't rolled this out yet. But with quick matches, you are unable to filter. But as there don't appear to be any unofficial ones (yet or ever?) it's not currently an issue.
On xbox at least when I've played with randoms, at least one person in my squad has had a mic, if that helps.
It's early, but, thus far, most of the people I've played with have been playing intelligently, from what I can see.