Like the idea of having a mini game shunting scenros so bassicly you would start the game light loco and have to make up a freight train or a passenger train in a yard u would get points for speed and the right sets of rolling stock in correct formation ready for the start of a shift this could also be a competition between players to see who can get most points also points could be deducted for breaking cupping by pulling stock away to fast and for hitting stock to.fast when cupping up
So, correct me if I am wrong but, that sounds a lot more like a scenario point plan rather then a mini game.
Yes it could be but u would have it set so you set all the trains up ready for the day if that makes sence