Hey guys, I was looking through my builds, and saw one of my uncompleated TDM's (idk why I made this). And thought this could be a good edition to and underground part. Whats your opinion?
Here are three pics for ya'll

This is the control room. You can make some things go boom.
Here is another angle of the control room, you can turn the fan on or off. And there is a room in it.

Close up of the fan which shows another door.

Here is the other part of it.

I have a place to put it but I will ask your guys opinion