Hi,
Bug : Hunchback mutant turn invisible when they hold something (barrel or rock) and the player stun them. They become visible again after the status is over.
https://youtu.be/9drLz5hfPnAI guess they are no animation for being stunned or incapacitated and still hold something over its head.
Related suggestion: Hunchback mutant should drop their rock (and take damage) or explosive barrel (and make it explode) when their are stunned or incapacitated. It make more sense and doesn't require a new animation.
You're making a great game, can't wait for the DLC!