A modern fortress for security or police forces. I initially used it as an Adeptus Arbites Fortress from 40k, but I kept it generic enough for any modern, sci-fi, or cyberpunk system.
It has 4 Levels:
Ground Level: 2-stage security doors, two defense lines all around, interrogation and multipurpose rooms
Level 1: armory, med-bay, crew quarters, and laboratory
Roof Level: comms array and automated gun-turrets
Basement Level: holding cells, tech room, intense interrogation room, high-sec cells, and two separate hallways for crew and inmates