Italian unification (Italian: il Risorgimento, or "The Resurgence") was the political and social movement that annexed different states of the Italian peninsula into the single state of Italy in the 19th century, especially between 1858 and 1870, during the Italian Independence War.
This scenario is about the war between 1858-1870, and it follows step by step of the national struggle for the unification of Italy.
You control the volunteer forces of the Kingdom of Piedmont, and must follow your objectives in order to unify the whole pennisula under the government of your king.
Do exactly what you asked to, because everything is scripted into a nice complex plan of war.
Do not capture cities you didnt asked to take- it will ruin all the fun.