The M18 GMC is an American tank destroyer from World War II. After the war, the United States was left with a surplus of obsolete equipment, including these vehicles. It was decided that these vehicles would be used to rearm new allies, particularly the Italian Army. Italy was to receive a total of 130 M18 GMCs, which were delivered by July 1952. A distinctive feature of these vehicles was the removal of the side skirts. The Italian M18s were assigned to the 155th Artillery Regiment of the 5th Army Corps, whose garrisons were located in the Veneto and Friuli Venezia Giulia regions, near the eastern border. They were in Italian service until early 1960s, when they were phased out by M47s and other tanks.

The Italian M18 was introduced in Update 1.99 "Starfighters". Unlike the base version, the vehicle lost its most powerful round, the M93. However, it still has good mobility and a powerful 76mm M1 gun with APCBC shells. For this reason, it is well suited for flanking maneuvers and taking key positions on the map in gameplay conditions. However, its weak armor and open-top turret make it vulnerable to many threats.