I pulled some code from my witch's night out mutation and changed some things to make it work with this mutation.

The mutation will now detect if the katana is a valid mutation. If the katana cannot be used then the script will go down the list of melee weapons. As a fallback it will give the player a magnum as secondary with same functionallity as the melee weapons.

I changed some stuffs. :o

I hopefully fixed the GL blowing up in your face issue.