Install instructions for MB O405 ZF

1. Buy the O405/O405G DLC on Steam: https://store.steampowered.com/app/434061/OMSI_2_AddOn_Citybus_O405O405G/
2. Install ZF mod: https://reboot.omsi-webdisk.de/file/3100-mercedes-benz-o405-g-zf-mod/