All the bases are set on cliffs, and the entrance to them can be easily defended with cannons, bunkers, and sunkens. There is only one entrance which is a cliff doodad slanted down on a lower elevation. (easily wipe out an incoming army with tanks positioned at defense) There is enough minerals so you don't have to worry about running out. Its a pretty simple map, if you don't know where your entrance is then just scout because every base is positioned differently.