Help please i cant hear the ingame voice chat

Party chat is more private, where as ingame chat everyone in that session or within proximity of you will hear your voice, and you can hear their voices.

Question, I can hear the game audio, but I cant change the chat volume, yet I can still hear my friends in party's and game chat. The only way I can change how loud there voice is to change the game volume on my X12. I tried going to preferences and voice,
but when I switch to play through headset, I don't hear my friends. Is there anyway I can change my friends voice volume? Because chat volume doesn't work on game chat and party chat.

Edit on item #2

It's not meant to be "party chat" but "chat". Whether ingame or party. But the buttons are not switching between game or party chat, but to control the balance between game sounds and voice chat.

I also am always in a party just for the purpose of not being able to hear the ingame chat.

Thank you for your help.

First excuse me cause my english is bad.

I have friends who dont have xbox live GOLD and can talk or connect in parties, This is not the unique error im playing Gears of War 4 PC and i cant see the chat text, I cant hear or speak in the voice chat, I cant PLAY CO-OP Campaign (HATTON ERROR)

I really need help with this.

Thank you again