Red Army Faction in November of that year, the Federal Constitutional Court (Bundesverfassungsgericht) demanded that they return to custody. Only Horst Söhnlein complied with the order; the rest went underground and made their way to France, where they stayed for a time in a house owned by prominent French journalist and revolutionary, Régis Debray, famous for his friendship with Che Guevara and the "foco" theory of guerrilla warfare. Eventually they made their way to Italy, where the lawyer Mahler visited them and encouraged them to return to Germany with him to form an underground guerrilla group. The Red Army Faction was formed with
Red Faction from the control of the Earth Defense Force. In each game for the series, an engine called Geo-Mod, short for "Geometry Modification" technology, is present in some form. The Geo-Mod engine enables the player to destroy parts of the walls, floors, and other features of the levels in a non-predefined manner using various explosive weapons. For "Red Faction: Guerrilla", the engine, now based on the "Saints Row" engine, was originally planned to be called RED, short for Realtime Environment Destruction, but later renamed as Geo-Mod 2.0, which allowed for the free-form destruction of buildings and other structures. Geo-Mod was updated