I apologize for the necro, but I've found a workaround.
The problem is when you launch BO2, it adjusts your microphone level to match the in-game voice chat volume. I haven't found a way to prevent it from adjusting but the workaround is to set your voice chat volume to the sensitivity you want (50% for me).
[image: 1680375665214-9e0743d6-b55d-40d9-8d75-b516eb554478-image.png]
[image: 1680375745343-960b988d-c68d-47f6-8b95-9740066c91a6-image.png]
Then when it launches, it'll stay at 50. Hope this helps!
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