Hello rmwiii3
- Is the little switch on?
http://assets.gearlive.com/blogimage...ing_medium.JPG
-Try to clean the Microphone carefully by removing those grey things and blowing in your mic to clean out the possible dust.
-Are the batteries fully charged, do they click when you put in it?
-Does the headset fits in the controller perfectly?
-Do you mean nobody can hear you? Since if you have an ''STRICT NAT'' you can only communicate with people with an ''OPEN NAT'' but that does not explain that you can hear them.
- Open a party, go to the screen and say something and check if you see an icon when your talking, maybe they were just ignoring you?
Others Can't Hear You
Make sure the headset connector is plugged in securely and that your headset isn't muted. Make sure that voice isn't muted in the Xbox Guide. Check your game manual to determine whether you need to push a button while speaking.