Sandy part comes from KROTOS: <a href="https://www.youtube.com/watch?v=73yhuipuaJo" rel="nofollow">https://www.youtube.com/watch?v=73yhuipuaJo</a> the low frequency comes from the RFPS prefab made by azuline studios, they are not available anymore but the RFPS can be downloaded here: <a href="https://modsfire.com/496728QtZ3b9IEk" rel="nofollow">https://modsfire.com/496728QtZ3b9IEk</a>