The Motoscafo Armato Silurante (Torpedo Armed Motorboat) is an Italian fast attack craft used during World War I and World War II to combat enemy submarines. Primary armaments included torpedoes and depth charges, and crew also manned a deck gun and heavy machine gun.
MAS 15, a 30-ton boat that entered service in 1916, was credited with the sinking of the SMS Szent István, an Austro-Hungarian battleship. It is preserved at a museum on the grounds of Il Vittoriano in Rome, Italy.
Its main armament are two torpedoes, operated by the captain. Additionally it is equipped with a rotating auto-cannon emplacement on the foredeck and a heavy MG mount port and starboard each.
Although carrying light armor, all occupants of the boat are exposed to enemy fire.
Like airplanes, the M.A.S. is able to travel outside of normal infantry bounds, though is only maneuverable on water. Unlike the maps in Battlefield 4, open water is typically out of bounds to infantry. The M.A.S. can also spawn well to the rear in Operations (Gamemode). Passengers need to be careful about where they decide to disembark, or they risk stranding themselves in certain death.