Hey... is it that Unarmed loot that I reported back when I first started playing? Is it an actual item and they're trying to use it?
Yep, same one, much to my shame. I think when it's looking for items to put in the loot containers at the end of the mission, it's pulling the unarmed weapon from the database. It's non harmful, as the item won't be added to your inventory, but will fix it when I (finally) get around to improving the loot algorithm.
Different from the additional unarmed item that mafia enemies had, and was causing a crash, that you reported.