Is there a better sim than train simulator? I've just been playing 2021 and the game play is okay but the tutorials suck. I had to work out what track speed was for myself and even that's not reliable. Sometimes it goes from 30 to 15 with no obvious warning. Also the signal instructions don't give enough information either at least for the us signals. Theres a signal in the game with a light on the ground, one at the top of a post and a green light hanging of the side. What the he'll does that mean?