Metro: Last Light simply wouldn't be Metro without an on-rails section that's literally on the rails, hurtling along the underground metro system, as Artyom and Khan catch up with the train carrying the mysterious prisoner that they're looking for.

What follows is a gun battle across the tracks as you tear along to the side of a rushing Reich train, having left the Reich Station behind earlier. It's somewhat reminiscent of the on-rails sequences in Metro 2033, but with a bit more action, including a heroic leap between the moving trains.

Check it out in the third and final part of the Metro: Last Light gameplay trailers. Metro: Last Light is out in 2012 and we'll be getting another look at the game at Gamescom next week.