The success of the rocket launcher in the first battle dealt a heavy blow to the arrogance of the invaders. Later, in the fierce battle of Stalingrad, the Soviet army used the M-30 rocket launcher, which destroyed a large number of German positions, destroyed weapons and equipment, killed the effective force and dealt a heavy blow to the German spirit. Since then, the M-30 rocket launcher has shown its talents and shined brilliantly on the anti-fascist battlefield. Due to the extreme secrecy, even the personnel of the artillery company don't know the official name of the rocket launcher. When they saw a K (the first letter of the Communist International Factory) on the gun rack, they loved to call it "Katyusha". This name later spread like wildfire and almost became the standard name of the Red Army soldiers for rocket launchers. Katyusha rocket launcher was originally equipped in the artillery regiment of Soviet motorized infantry division and tank division, which was mainly used to destroy the effective forces in enemy assembly areas, suppress or destroy artillery firing positions, and destroy various field fortifications and support points. The early "Katyusha" was refitted from Ural -375 truck with a maximum speed of 70 km/h, and later it was changed to a wheeled four-wheeled off-road vehicle with a maximum speed of 85 km/h. There are 40 launch tubes on the large rotating frame at the back of the car body, which can launch 40 submunitions in 10 second and destroy various targets 20 km away. When launching, countless bullets hit with overwhelming force, just like the hail that suddenly hit on a sunny summer day. Germans call it "the roaring death", and because many rockets hiss like the wind when flying, they give it the nickname "Stalin's organ".

At the beginning of 1942, the Urals Ordnance Factory of the Soviet Union produced a large number of rapid-fire self-propelled guns at an alarming speed, and quickly equipped them in the hands of the Red Army. This kind of gun tilts on the truck and can fire rockets side by side. Unlike howitzers and cannons, they are not only easy to move, but also fierce in firepower. Therefore, soldiers love this weapon very much. The launcher of this rocket launcher is marked with the letter "K", which is the symbol of an arsenal when it leaves the factory. According to this letter "K", the Red Army soldiers who controlled the artillery named it "Katyusha", and this alias quickly spread among the Soviet troops. The name of a song has the same name as a powerful weapon, which inadvertently promotes the spread of this song.

At that time, Katyusha became the favorite of Soviet soldiers, but it became the most feared weapon of Nazi soldiers. When Katyusha rocket was first put into use at the Orlean Railway Station, Nazi soldiers heard her roar for the last time, but most often. When Katyusha threw rockets at these fascist Nazis, it became the most cruel but also the most beautiful picture in the war. The bullets of death are everywhere, and these Nazi soldiers often have nowhere to hide. Those who don't run fast are blown to dust, and those who run fast are scared to break down! Even Nazi officers at that time sent a telegram to their superiors saying, "... the Russians used a new type of artillery at the front! Everywhere we go, the earth is shaking, steel is burning, ... our army suffered heavy casualties! "That is, after that, Katyusha became the first choice weapon of Soviet artillery and was widely used where conditions permitted. Even Katyusha became synonymous with the Soviet Red Army. And became a fighter with T-34 tank, Tiger and Leopard tank, ME/KOOC-0/09, FW/KOOC-0/90, B-/KOOC-0/7, B-29 bomber, F-4F, P-40, P-5/KOOC-0/during World War II.