Problems with voice communication?

When I sign on to play, it’s as if I’ve muted literally EVERYONE that plays Halo 4. I know I could not have muted THAT many people. And my gamertag has not undergone any sort of communications enforcement, as I am able to communicate with people on my friend’s list not problem. Am I the only one with this problem?

By the way, when I do sign into Halo 4, when enforcement action has taken place, there is usually a banner informing you of such before you begin any game. I don’t have that either. Can an admin or someone tell me if this is a technical problem or something?

Never mind. I know what I did now. I made my privacy settings a little too strict. Oops.