Can hear people cant hear game

Hey there TheHaloRobot,

Sorry to hear about the headset problem, have you tried this guide for troubleshooting yet?
Xbox One Chat Headset Troubleshooting Sometimes it can help with the issue. Which headset are you using with the console as well?

Try Setting up a headset adapter. This helps if the
3.5mm socket is faulty on the controller and also
Update your controller firmware
are two support links for further steps to take.

Check mic not muted.

Press guide button. Go to system on far right - cog symbol - select audio - there is a toggle switch in there for mic on/off.

Hi There,

See if there is anything in the trouble shooter that can help you out.

If you can hear others in a party or game but they can't hear you, try these solutions.

Solution 1: Make sure your headset is not muted

Check that the orange LED light next to the mute button is not on.

Solution 2: Power cycle your Xbox One console

For help, see How to restart or power cycle your Xbox One console.

Solution 3: Re-associate your controller with your profile

1. Press the Xbox button  to open the guide.
2. Select System > Settings > Kinect & devices > Devices & accessories.
3. Under Assigned to, choose your gamertag.

Solution 4: Verify the NAT type for your network

Network Address Translation (NAT) lets you hide your IP address from devices that are not on your network. For more info about NAT, see the "Current network status" section at Network
settings on Xbox One.

Solution 5: Test your Xbox One Chat Headset

To test the headset, start a party (requires internet connectivity) to test the audio:

1. Sign in to Xbox Live on your Xbox One console.
2. Press the Xbox button  to open the guide.
3. Under Multiplayer, select Start a party. (You don't need to invite anyone for this test.)
4. Make sure your mic is not muted in party chat.

Note You can use the Y button  on your controller to toggle mute on or off.

1. Make sure your headset is not muted and that the volume is turned up.
2. Speak into the microphone. If your headset is working, you’ll see the ring around your gamerpic light up.

If you still can't hear your friends online after you've started a party, but you can hear sound while using in-game chat or another app like Skype, see You
can't switch to party chat on Xbox One.

Solution 6: Troubleshoot your connection

Check your connectivity by using the Xbox One Multiplayer Game Solution

Link:
https://beta.support.xbox.com/help/hardware-network/accessories/troubleshoot-chat-headset.

Try unplugging then replugging your mic back in.