Complex sentence: Many different ammunition types were produced for the M79 (and subsequently for the M203), outside of the smoke and illumination rounds three main types emerge: explosive, close-range, and non-lethal crowd control.
Split into simpler sentences: Many different ammunition types were produced for the M79 (and subsequently for the M203). Outside of the smoke and illumination rounds three main types emerge: explosive, close-range, and non-lethal crowd control.