I've finally managed to actually work some more on the project. It seems like I have to learn Unity or somesuch in order to have a barebone skeleton to work on.
The drawing itself is an excavation site. The arch on top is intended to be heatsinks, because the beam drill in the hole produces a lot of heat.
Such a site is intended as a way to get into a complex that is covered in thick ice. It also provides the players with a place to defend.
