I started Metro: Last Light this week and decided to stream a couple sections of the game. In the video below, Artyom gets separated from his newfound friend Pavel when Pavel gets captured. Artyom is trying to find Pavel before his captors kill him.
The video came out pretty dark, as the game is dark and the stream is always a bit muddy. I think you’ll get the gist of what the game play is like, though. Good mixture of stealth and shooting. Feel free to fast forward through the five minutes or so I end up standing in the dark when the guards sound the alarm.