In KN we use 262 (lol) for our cross country comms. Works with chat and voice if tuned correctly across countries in MA.
Also, learned that if I use my squad comms in text buffer (default red text I think), I can type a message in the MA and people in the FSO will still see it. I was in the MA playing with my bro while the rest of KN was doing the FSO two weeks ago or so, and they could see my messages and I could see theirs.
Edit: I'm also a naugthy boy on 200 so my understanding is no flame wars (like lasting longer than a few messages) and politics. Especially around the election in November.