Dugouts:
Requirements:
Locks and Bolts, metal working
you need:
10 Boards, 10 Blocks of wood, 3 Bars of Wrought/Cast iron
Every tile would be dugout by 10 Mines, just so it can't get oversized for one person
These should have limits, like very solid blocks, which cannot be dug, Gas pockets, which mined, will cause 10-50 SHP/HHP damage, just to give people who think this would be silly.
Building: Storehouse/Warehouse
Requirements:
Locks and bolts, masonry, metal working, mining and Yeomanry
This would be a 12x12 building, requiring:
500 Bricks
10 Bars of steel
20 Blocks of wood
40 Boards
Once built, this will give you a key, which can be used to open the storehouse
Soak: Same as brick wall