I swear the day the alchemists on GS's universe discovers gunpowder will be the hypest shit ever.

On one hand, cool.

On the other hand, the shotgun's fairly slow rate of fire leaves you vulnerable in crowded corridors, much like the places where goblins live.

On the third hand, I suppose haing limited ammo fulfills this Slayer's desire not to leave any powerful weapons for goblins to use while being awesome in the meantime.