Quarantine is a map that was made inside the hangar, and it uses the original elevator, and two grav-lifts to be transported from the bottom platform to the top platform, its all-round a good persicion weapon map. Here are a few pictures to describe my map.
That grass and rock part doesn't seem to fit in with the rest of your map. The rest of your map has a metallic feel, and that has more of a nature feeling to it.