The map is mostly close-medium range, with the only real sniping positions being from windows in buildings and a hole in the wall of a building. Therefore submachine guns and assault rifles are the best choices for this map, statistically, as well as shotguns.
A freight car on the tracks can be moved into the center of the map to change the position of cover it provides. This is done by going to the control room in the mine/cave and to the right of the entrance there is a button that moves the car back and forth.
This map has a special Field Order reward called "Missile Strike": A small volley of missiles will strike enemies wherever they are not under overhead cover (roof, etc.).