Coming soon, Tehachapi Pass Scenario Pack 01 will bring to vivid life all the action of two glorious eras and four railroads! Read More: https://live.dovetailgames.com/live/train-simulator/articles/article/two-eras-on-tehachapi
This scenario pack will utilize the BNSF ES44DC from the Montana Hi-Line route and thus will have fully functional air brakes.
Stock is questionable, but you can't really blame them. (Either way I knew this was bound to happen lol)
Does this mean the Hi-Line is required for it? I do not believe it is available for purchase in the EU.
There is a worldwide version of the Montana Hi Line. https://store.steampowered.com/app/1147154/Train_Simulator_Montana_HiLine_Shelby__Havre_Route_AddOn/