59. On cold days, in northerly latitudes eg Norwegian Sea or Baltic, have the crewman avatar emit the slightest amount of visible breath as they breathe. Tie the amount to the amplitude of their in game voice signal at any instant they are talking. If not talking, resume slight visible breath to interval of normal breathing. Increase rate if actively pinged. This effect should be VERY subtle. Disable visible breaths on bridge or on the casing.
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