This trailer is the third and final installment in the Ranger Survival Guide for Metro: Last Light, 4A Games' upcoming first-persons hooter sequel. Here's word on how this shows off the game's atmosphere and arsenal: "Exploring the unique equipment and brutal, hand-made weaponry every Ranger needs to survive the perils of the Metro, this chapter also teaches you how to use light as an ally (or even as a potential weapon) as well as detailing Metro's infamous bullet-driven economy and gun trading and customization mechanic." The game is due for Windows and consoles on May 14th in North America and May 17th in Europe.