(!469) Angmar Hillman Inn unit rework

Description

Angmar Hillmen now have an unique model, have a thrall master included in their horde, play thrall master voice

 

Changelog

devlog

 

Checklist

I have:

• Tagged my change with the ;,; comment block.
• Ensured that this merge request changes exactly one thing.
• Attached the proper labels to this merge request.
• Added the Merge Request number in the title. e.g. (!42)
• Tested my code.