Top to bottom:
10 cylinder engine for the whole gun base. I took the same design Russians do on their tanks
Gas pump connects the left side, transmitting fuel and water to the engine
Shaft transimitting dynamic forces generated from the engine to the wheels of the gun base (not shown on this graph)
Water main control room is modified by the civilians to send water to their shelters.
Heat disspensor is modified by the civilians to harvest the heat to boil the water for civil use and water the crops on the right hand side. This is the warmest place inside the base, this is also where that hot pot scene takes place.
The main cable transmits power from the power station
The Fan was used to cool down the base. Now it`s stopped becasue people need heat more than ever. That is why there are so many steam comes down from the upper floors.
Waste water goes down to the power plant to recycle.
Tokamak is one of the most promising approach to a sustainable, profitable nuclear fusion power plant. In real life we have not achieve this clean energy breakthrough, yet in our story they somehow did it before 2020s.
It is a very very advancing technology as it basically provides unlimited power. We are thinking to change it to something more primitive, like a traditional nuclear power station or a geothermal power plant.
We did this to show you that some decision we made looks like we just use real life objects as a SF assets. It is not true at all. We go deep into settings and almost obssessed with useless details. Our newly ideas for this projects is to design a group of advanced civil engineering equipments for the gun base. As the equipments we use nowadays is unable to support such great structure plans.
We even started to seriously think what is a more scientifical way of ground breaking visual effects style that we are going to use:
We believe to build a grounded world, such details is needed and is way more attractive than orally speak out the settings. Those settings are not as powerful as the gun or the cloth our character are wearing, but they create an unnoticing feeling for audiences and overall they perform in a deeper way.
And it`s fun. I mean, a rocket powered crane, how cool is that.