How to Install:
- put "finalboss_1h.brf" in "modules/crpg/resource" folder
- put the textures in "crpg/textures"
- Make a backup copy of "crpg/item_kinds1.txt" and paste the new one from the .zip
- edit "crpg/module.ini" and add the line "load_mod_resource = finalboss_1h" right below the line "load_mod_resource = kazakh_armor"
- report back!
From OP
EDIT:
Done this exactly, checked it is the same as in the how-to-setup.txt file in the .zip file, and my game crashes whenever I join a server
EDIT 2:
If I join with a character with no heirloomed 1hers, it does work, but if I join with one with a loomed 1h, it crashes.