Complex sentence: Mack is heavily into adventure novels and other escapist fantasies, and is determined to be a Ranger; he takes failure badly, almost quitting when he failed to protect a civilian (in "Weather Or Not").
Split into simpler sentences: Mack is heavily into adventure novels and other escapist fantasies, and is determined to be a Ranger. He takes failure badly, almost quitting when he failed to protect a civilian (in "Weather Or Not").