Fort Resilience

At the peek of the Golden Age the airport had seven bustling terminals, four grouped together in and linked by concourses made up the main original structure, a fifth, and separate, terminal was built before the Golden Age and two more were added to that shortly after the discovery of the miniature nuclear power plant.  The terminal buildings serve as the foundation for the base, the first four-terminal structure is now the command complex and houses all the offices, messes, and logistic functions of the base.  The second terminal structure is now the barracks complex and features fairly comfortable accommodations, as well as officers and enlisted clubs, and an entertainment centre.  Both complexes look like small versions of fortified super cities, are self contained and are connected by a series of tunnels, concourses and even high-speed transit.

Chicago Company Barracks
Destiny's Den, Company Lounge

Scattered outside these two mammoth structures two of the old runways have been cleared and rebuilt and can land any of the biggest CS aircraft.  New hangar buildings and structures have been built to accommodate the hundreds of SAMAS vehicles, tanks, APCs, and robot vehicles.  The defense perimeter expands outward from the airfield and vehicle hangars.  The perimeter prominently features two defensive walls, encircling the base and runways, with the inner wall being higher than the outer wall.  The space in between the two walls has been dug-out to create a twenty foot deep, two hundred foot wide moat.  The moat is not filled with water, although in a pinch the base can open sluice gates that run into the nearby De Plaines River and flood the moat.  Extending past the second wall is a minefield and a network of dug-in bunker positions that connect by collapsible tunnels back to the second wall, which in turn has collapsible tunnels retreating back to the first wall.  The area past the minefield is regularly patrolled by Dog Packs and automated Skelebots as well as monitored by seismic sensors, strategically placed video monitors, and airborne reconnaissance all in an attempt to give the base maximum possible warning of anything lurking outside its walls so it can raise maximum amounts of resistance

Forward Points
The east wall has two large gates and a well maintained and monitored road that moves straight to the De Plaines River Bridge.  The Bridge itself features a sizable garrison on both sides, enough clearance for most naval patrol vessels, and is designed to withstand a pounding but also to collapse with a moments notice blocking ground access to the base, and Chi-Town, from the ruins.  On the east side of the bridge is another smaller walled complex with a minefield that extends into the ruins.  This is The Bridgehead and is a major staging area for reconnaissance, seek and destroy and other ground operations into the ruins.  A road extends from the Bridgehead all the way to the super nexus and The Containment Area.  Beneath the Containment Area is the Old Federation of Magic Bunker structure, which has been modernized and holds another garrison of troops.  This garrison is on twenty-four alert and serves in seven day rotations before being rotated back into Fort Resilience for four days downtime and a turn in the defensive walls.