This file restores old weapons from the bfg20k addon, suggested by deldelda

Note from deldelda:
I've included three weapons that have since been removed from bfg20k (what clusterweapons used to be called): the Legendary Quad Shotgun, the Legendary Minigun, and the Enraged Legendary Minigun.
This file also includes a low-tier chaingunner which was removed, the Tech Vulcan Zombie. these are all in a separate file, which includes monster drop edits and random spawner edits to allow them to be found.
This file is completely optional.

V2 update: Updated some monster and weapon spawners