Complex sentence: Maia's troops set off in a column of armoured vehicles, Manuel and his colleagues capture the radio station in Lisbon and a signal is given by morse code by car headlights to prisoners being held in prison by the DGS.
Split into simpler sentences: Maia's troops set off in a column of armoured vehicles. A signal is given by morse code by car headlights to prisoners being held in prison by the DGS.