[Autumn]

It would appear that when you mutate another weapon into a gun, it gains the skill "Headshot" which is doubled in damage for anything that is not natively a gun to begin with.

To replicate:

1) Mutate any weapon into a gun (Tsukikage used in this scenario)
2) Use Headshot
3) Observe it does abnormal damage.



I've posted the debug info and a comparison between Hikage as a Dagger's damage vs Tsukikage's headshot damage.