A collection of big stations including a Giga factory. Not campaign friendly, but good for creating attack maps.
Using the schematics (mobile)-
1. Extract the files. Then open the game.
2. Start a map (or load a saved game). Then click on the clipboard icon (3rd icon, top left of the screen).
3. Tap on Import schematic. Select Import file. Then browse to the files that you extracted and select one. You will have to do this one by one for each schematic.
4. Once it's loaded, the schematic will be available to build in the game.
Big thanks to the Reddit and Steam community for much of the design patterns and guides.