Railwayman

Railwayman is an achievement in Metro Exodus that can be obtained in  The Volga level.

Overview
After navigating through the half-flooded warehouse that the cultists use to get rid of technological devices, the player will find  Krest's  railcar, a railway vehicle that they need in order to pull a  passenger carriage to the Aurora. The achievement is obtained after first entering the railcar and using the circuit breaker received from Krest to start the engine. This task is story-related and has to be completed in order to progress to the next level, so this achievement can not be missed.