The EMD GP10 is a good looking locomotive. Dovetail games never even made anything close to this for Train Simulator 2021 (I'm not talking Train Sim World or Train Sim World 2, stay with me people!) What about a CN or CSX or Western Pacific GP10 for switching and small freight operations? That would be cool. Why use modern power, when there's old school choo-choos to play around with in TS2021? At least we can play around with it and see how it works.
Illinois Central rebuilt many GP9s into GP10s. A future IC route could include a GP10 and an SD40A (IC's SD40s built on SDP45 frames so they could install bigger fuel tanks). Also, an SD70, GE U30B or U33C or Alco C636 could be great as well as an NW2, SW7, or SW9. DTG should make more fallen flag railroad routes.