The only horrible and absolutely mundane map in the MA's right now the Mindanao. That map is horrid, no rhyme or reason to anything with a very minimal (close to non-existant) gv game.
I really wish HTC would allow a map from the special events to have a different layout of bases (tri-pie) and let them in to the rotation. There are MANY awesome maps in the SEA that are amazing, it is truly too bad that the terrains cant be used in the MA.