Bolt Action: KatyushaRain fire from the skies with the mighty Katyusha! A simple and very Soviet concept, the name Katyusha refers to a long series of truck mounted multiple rocket launcher systems, designed to provide a massive barrage against a target, then quickly reposition and strike again to avoid counterbattery fire. A wide variety of rocket sizes and trucks would be used, with one of the most common being the BM 13 launcher mounted on Lend Lease Studebaker trucks.