Complex sentence: As he leaves the USR building, he reads the last 50 messages between Robertson and Lanning while driving through the Chicago tunnel, only for the colossal USR trucks to appear and send dozens of NS-5 robots attacking him, destroying his Audi.
Split into simpler sentences: As he leaves the USR building, he reads the last fifty messages between Robertson and Lanning while driving through the Chicago tunnel. Colossal USR trucks appear and send dozens of NS-5 robots to attack him, destroying his Audi.