Complex sentence: After an intense battle, Jill defeats Nemesis with the help of a prototype railgun before meeting up with Carlos and escaping the city via a helicopter piloted by STARS Alpha Team's weapons specialist Barry Burton.
Split into simpler sentences: After an intense battle, Jill manages to defeat Nemesis with the help of a prototype railgun. Soon after, Jill meets up with Carlos and the pair escape the city via a helicopter piloted by STARS Alpha Team's weapons specialist Barry Burton.