The MS-15 is a CRDA 60t class torpedo boat, a particular class developed from the German S-Boot designs. These CRDA 60t class torpedo boats are used for various roles including torpedo boat, patrol boat, escort, anti-submarine combat. The MS-15 was launched on 2 February 1942 and with its completion and commissioning on 2 June 1942, it became part of the Regia Marina, specifically the 1st Squadron. The MS-15 was deployed for operations at military bases in North Africa in July 1942. One of the most important missions carried out by this unit was the transport of troops of the San Marco Regiment in enemy waters, as well as participating in anti-ship ambush operations. Later in 1943, MS-15 was in Monfalcone to work on the boat. After the armistice of 8 September 1943, MS-15 participated in the operations of Co-Belligerent Italy against the Germans, in fact it was sent to defend the port of Lero, but on 25 October 1943 it was bombarded by an enemy air attack while standing at the dock, the MS-15 first caught fire and later exploded.

The MS-15 was introduced with the Italian naval tech tree in Update "Starfighters". It is a torpedo boat with average performance, nothing too strong and nothing too weak, and the armament consisting of two 20 mm cannons can cause enough damage to enemy ships. The MS-15's speed and manoeuvrability is not too bad, with a maximum speed of 61 km/h that allows the MS-15 to flank enemies and ambush them with torpedoes and depth charges. Survival is somewhat good for a ship of its type.