I traded for this commisar for something very inexpensive or else I would have attempted to convert one. I wasn't a big fan of the all black outfit as it didn't seem very regimented to me. I painted him up in the fatigues of the line soldiers. I think all of the extra adornments speak for themselves as to his statures. The bolter aimed at your face when you're given an order also helps to alleviate any misunderstandings that may occur from his uniform not being all black.
He is to join an infantry platoon at some point though when he does I only have 20 spare guardsmen so the squad is a rather small blob. I attempted to paint a glow effect but it doesn't come across at all on the resized image (not that it is good anyway).