It has Lattice links to:
It has 3 Towers that are close to the base, of which the Gun Tower to the South the closest is.
Atar is a Hack-and-Hold Facility.
Atar is very defensible by the simple virtue of its being the sole facility on the island. Vehicles can only be obtained elsewhere and brought in through a Warpgate - a tedious and time-consuming endevour for a protracted battle. Defenders also have the advantage of the bottlenecks created by the design of dropship center hallways.