Bar

Bar (Russian: Бар) is one of the stalkers from the Polis Kshatriya team, in the Kshatriya DLC for Metro: Last Light, along with the Ranger Trainee and his twin brother Su.

Overview
Bar and his brother hunt for artifacts alongside the Trainee (but none of their findings are actually seen), and occasionally help break the Trainee out of tough spots like the Watcher ambush in the Piano Room. Most of the time he is seen relaxing in the base with his brother, or sleeping. Him and Bar are twins, as stated by Kuzmich, who refers to them as 'the twins'. They often finish each other's sentences and look very much alike.

Trivia

 * Oddly enough, Bar seems to know how to play the piano. This may mean that he received lessons before the war as a child or adolescent, or possibly received them in an affluent station like Polis after the war. Their young appearance indicated that it's probably the latter, though Su doesn't seem to be interested in the piano. Apart from the Bolshoi station stage musician and a ghost, he's the only NPC seen playing a piano.
 * He and his brother Su are the only NPCs in Metro: Last Light who use bayonets.
 * Occasionally, you can take the ammunition from their guns as they rest on a chair in the hub, though they seem not to notice or care.