The 9K31 Strela-1 is a highly mobile, short-range, low altitude infra-red guided surface-to-air missile system. Originally developed by the Soviet Union under the GRAU designation 9K31, it is commonly known by its NATO reporting name, SA-9 Gaskin.
This is a low-poly model and ready for game. As shown in the images the rendering was done in real-time unity 3D engine.