- Defensible Spawn - Resources are in pits. making them vulnerable. The more vulnerable the pit the more the resources are worth. -Safer Expos exist in the corners but are further from spawn making them hard to protect. -Rocks block routes for large armies to travel.
(Map Published on Battle net EU server- Just search "Archi - Money Pit" in SC2 or Search "Archi - " to play any of my maps)