Don't like 'em.
The entire shoulder thing always seemed like a really lame way to increase equip count. Would rather seen a cloak, or perhaps separate tunic and armor, but shoulders I have hated since WOW.
As for guns, they don't really make sense, if you think about. The sound of a gunshot would either attract or scare away every monster within miles. Never mind the annoyance of the sound itself.
I understand the guns can be modded out, but what might a player do replace the shoulders?