Notice how the base of operations subtly evolves.
As your control over DC grows, small things are added to your base, such as solar panels.
These small visual adjustments help the world feel like it is naturally evolving, rather than a sudden drastic change.
Like the exterior, the situation room will gradually change throughout the game.
New equipment is added as your capabilities grow.
Added visual changes can even signal some gameplay elements being added.
You won't be fully in control for long though. Black Tusk awaits you in the endgame.