I'd like to suggest to overhawl the tutorials for all engines in the game. This change would focus on the complexity of the tutorial. For example begginer tutorials would cover the basics like they do now, time taken currently is 5 mins roughly, intermediate and advanced would cover more complex things or bits and pieces that you would do which need more skill. The CSX engines offer the opportunity to go throguh a full cold and dark procedure, not all engines are as advanced yet but most are including CSX's. The aim is to be more comfortable while operating each locomotive by applying real life operation.