I'm not really a fan of Firefly, but whenever I think of him now, I remember his boss fight from Arkham Origins. Not my favorite game from the series, but I was really into that fight. Didn't like his side quest in Arkham Knight all that much, though.

Anyway. Head was the masked BossFight head, sanded down and resculpted a little bit. The gun was a random one I had on hand, with the back half sculpted on. Belt was fully sculpted, as well. Backpack started with a small one from a random Joe, smoothed over with sculpt. Wings were fully sculpted onto the backpack. Used headphones for the cable. Full repaint, and all done!