New German soldier models are customized for specific environments, such as desert-appropriate gear including masks for sandstorms.

Players participate in the Allied invasion of Sicily, racing to capture Messina and engaging in sabotage missions in Gela.

The single-player campaign consists of 11 levels organized into three major operations:

Breakthrough introduces several new weapons to the series, most notably Italian firearms like the MAB 38 submachine gun and British equipment such as the De Lisle carbine and PIAT anti-tank weapon .