The following is a list of the maps that will be used at MLG Dallas, as well a detailed description of the changes MLG has made to these maps, where applicable.
*A building blocker has been added to the ramps of each of the starred maps, at each ramp closest to the main’s natural expansion. This blocker prevents the ramp from being blocked by the current standard amount of buildings (e.g., three pylons, two bunkers, etc.). Examples: Metalopolis, Shakuras Plateau, Testbug, Xel’Naga Caverns.
Starting spawns on Metalopolis and Shattered Temple have been modified to prevent close ground spawns.
Starting spawns on Shakuras Plateau have been modified to ensure cross-map spawns only.
To access this map pool, including the non-ladder maps, simply search for “MLG” on the StarCraft 2 map selection screen.
Source : MLG