Very weird thing happening to my mic

When ever i plug my mic in i cant hear anybody and the peoples mics arent even there but when i unplug it they are talking

Your mic is broken.

While I am 100% sure this doesn’t belong in the Halo 4 forum. I must ask, what kind of mic do you have?

its the regular xbox mic but my mic works with other games just halo 4 it dsont work

Might be your settings in the Halo 4 menu

Turn up your volume.