BM-21 Grad is Soviet era 120mm MLRS, entered into service in 1963 to become most popular MLRS in the world. The BM-21 was widely exported in Africa and Asia regions.
The model created in high definition standard. The scene contain two types of rockets - loaded in the launcher and already launched. This help understand how the rockets should look before and after launching. The model consist of 503K of polygons, however ~120K belong to the rockets (40 rounds). The model is real-world scaled and hierarchically linked, all objects and materials use corresponding unique names.