Complex sentence: The duo, well-armed, arrived at the ship where they fight their way through Griffith and Zhang's henchmen, while Chad fights and kills Moon, Alex saves Danielle but not Frank, following his escape.
Split into simpler sentences: The duo, well-armed, arrived at the ship where they fight their way through Griffith and Zhang's henchmen. While Chad fights and kills Moon, Alex saves Danielle but not Frank, following his escape.