How do I mute a player?

Games Halo 5: Guardians
1

In Halo 4 I could select a player and mute them while the game was in the process of finding players. Why can’t I do this in Halo 5?

2

It’s not supported by the lobby system yet. For now you’ll have to listen to their bad music until you can mute them in the game.

3

Thanks for the reply.

4

Yea either you’ll have to mute them in game or change the privacy setting for voice communication on your xbox one.