Kind of a little quality of life improvement, I know in some countries they have the ability to remotely control a locomotive, but I've only heard of the united states having yard slugs. They're designated remotely controlled engines that have no cab and are use to move cars around the yard and as extra power if there isn't a helper unit around. Like I said I've only heard of these being here in the US but I haven't looked into it further. Someone made a mod that is a yard slug but it's only the one and there's no livery support on it. That's not going to keep me from using it but I would love to be able to have other options for models and liveries. I also know that it's a lot easier for people to just make liveries for models that are added to the game by the devs so that would be nice to have on thats officially rolling line. I know it's more difficult to have to model out a mod and then make a livery for it by one's self.