In its current state thick mist is just miserable to play.
Why?, Because Target lock mechanics still work if your vision of the target is completely obscured.
The result. you spend your entire game shooting at the target lock icon against a solid grey for the entire game.
It does nothing for gameplay and makes the entire match exceptionally dull.
At this point the only 2 options seem to be either: disable mist entirely or have target lock mechanics disabled on misty days forcing everyone into a close quarters battle