Combat Mission Fortress Italy - Gustav Line is an immersive military simulation set during the intense battles for the Italian mainland during World War II. The gameplay focuses on key locations such as Salerno, Anzio, and Monte Cassino, leading up to the pivotal capture of Rome on June 4, 1944. This module offers an extensive representation of the Commonwealth forces during Operation Husky in Sicily, capturing the essence of the conflict in rich detail.

Players will find updates to German and American forces that reflect actual formational and equipment changes from the Sicilian campaign, enhancing realism. The introduction of new formations and equipment, including elite Fallschirmjäger as well as combat units from the United Kingdom, Canada, Poland, and New Zealand, enriches the tactical possibilities.

With four campaigns, 18 standalone battles, and a variety of Quick Battle maps, CMFI Gustav Line provides a robust array of scenarios, allowing players to experience the grueling nature of warfare along the Italian coast and in its challenging mountainous terrain. Note that the base game is required to access this module, ensuring that players can engage in the diverse and intense battles accurately depicted in this acclaimed strategy title.