The U.S. Heavy Rockets & Missiles of the Vietnam War May 19, 2018 Unipro2013main Vietnam War Heavy Rockets & MissilesHigh mobility rockets and missiles systems demonstrated with operational overviews of the Pershing & Sergeant (nuclear capable), the Honest John MGR-1B (M50) 762mm, and the (M510) Little John 318mm MGR-3A (12:46).