Ghostbusters Brute

Doesn't talk much.  This brute is human but people suspect that he might have a mutation or be a half-breed with an extra-dimensional entity.  He has a tattoo of the Ghostbusters insignia on his massive chest.  He works alone.  He is a berserker.  He drops off captured ghosts at any available facility.  He is a nomad and he is impervious to most temperature, whether by force of will or strange physiology.  The top half of his uniform is tied around his waist.