"Breakthrough is the second expansion pack for Medal of Honor: Allied Assault, this time developed by TKO Software where the player takes the role of Sgt. John Baker of the US 34th Infantry Division. This campaign covers the Battle of Kasserine Pass, the turning point of the North African campaign, the fall of Bizerte and the Allied invasion of Sicily in 1943, along with the epic race to Messina between George Patton's 7th U.S. Army and Bernard Law Montgomery's British 8th Army, the bloody Battle of Monte Cassino, followed by the amphibious landings and defense of the beachhead at Anzio in 1944. Breakthrough adds Italian weapons for single player and multiplayer as well as the British and Soviet weapons from Spearhead. Also, additional British weapons are included, to complete the British arsenal."
Source: Wikipedia, "Medal_of_Honor:_Allied_Assault," available under the CC-BY-SA License.