Fogan Structure

Quest Text Have you been to the Underground Storage of this town?
Oh my. I didn't know such grim things were down there.
Who would expect that
in a peaceful town like this?
I'm telling you this for your sake.
People here don't like to talk about the storage.

Summary In order to launch a successful expedition to wipe out the Fogans,
I think we'll need to take out their Fogan Archer Dugouts first.
Otherwise, we'll be exposed to constant arrow fire.
That's why I always check wherever I go for such structures.