Secret Bases

Secret Bases are the final areas of a series of missions. Usually indoors, these locations are sometimes used for Duos.

Includes

 * Gotham City Sewers
 * Gorilla Grodd's Lab
 * Distribution Center
 * Carmine Lighthouse
 * MSCU Precinct Interior
 * Joker's Funhouse
 * Meta Research Wing
 * Metro Station Building
 * Special Crimes Unit
 * East End Regal Hotel
 * The Greenhouse
 * Ellsworth Memorial Hospital
 * Monarch Playing Card
 * Metropolis City Hall
 * University Warehouse
 * Gotham University
 * OMAC Base
 * Lair of the Spectre
 * T.O. Morrow's Hideout
 * Ace Chemicals