Push to talk is tedious, why not just have the automatic default option of listening to your friends and the option to choose whoelse you can listen in on?
Are people so afraid of eleven year olds? Just t-bag them every time you kill them and they'll cry to their mothers and go into a nervous breakdown.
Not all my real life friends are gamers or into the games I want to play. If I jump on an online game and get into a squad, the only discussion needed to be had is the objective and enemies you've spotted.
Be considerate folks. I love my sony bluetooth mic because I can mute myself. Its as close to a proper push to talk as I can get. No one needs to hear me or my music either.
And with that, I leave you all with this....
http://youtu.be/QmQtSeDnMUw