Something interesting I have noticed in RRO and in HS Munchen-Augsburg is that there are also RE services available using Dostos. Do I have to download the Main-Spessart Bahn to get those services in the 2 routes I mentioned? Just want to know since I am thinking of trying it out.
As far as I know, these are Dostos from Main-Spessart Bahn (with BR 146.2) and/or Ruhr-Sieg Nord (with BR 143).
Yup, msb is the main dlc to buy to get the re services on other German routes. Dra too (146, dostos, 185, 143) which has the new and improved trains. The thing about German dlc is that they all layer/sub into each other so it'll get busier and you'll see more variety in trains