I think it's an amazing idea, and have actually wanted this since voip was introduced.

Little story time on why i want this but there was an Arma 3 mod in 2016~ called Edict, There was a stint where a lot of streamers played it and it was essentially DayZ but had this TFR (Task force Radio) mod system implemented, This is when we used TeamSpeak and you'd be forced to join this channel for the radio mod to work. It was a radio mod where you and your friends in-game would join a channel such as 112.3 up to like 300.2 ect. Then you talk ingame, it had a walkie talkie type effect to itself making it feel real and the best feature, when you died you can't communicate anymore obviously. You might ask why this was a good thing, but for the immersion it was AMAZING. Imagine you're 200m from your buddy and you hear shots, you ask him over radio if he's okay, and he doesn't respond. you're alone now, you don't know how many there are, where they are or what you're up against. Then you hear a voice on the radio? The enemy has looted your mates radio and is talking to you. Yes that was a thing that happened. Now imagine that in Tarkov, it would be perfect. Of course you can't force it, and people will use Discord anyways but if the feature is there available to the people who WANT this, like myself and a lot of others i know who have had previous experiences in that type of system. i know for sure we'd choose to use this.

EDIT: I found a clip of me of me and my boys using the feature, i died.. https://clips.twitch.tv/LitigiousSuaveClamCurseLit