Got a first hand sneak peek at these fantastic locomotives. Many new features, great detail.
This is a quote from VRC:
CSX GP40-2 Mother and Slug set for TrainSimulator 2015.
Slugs are built to provide extra traction at low speeds. They have no prime-movers, so they are entirely dependent on electricity siphoned from the mother unit, but they have control stands so that the consist can be controlled from either end. Most slugs are used for low-speed applications such as yard switch and humping, and local switching duties.
Still some fine tuning before release.



These locomotives continue the fine detail and realistic operation that is expected from VRC.