Metro: Last Light, sequel to Metro 2033, is quickly approaching its mid-May release date. Until then, the developers are equipping players with the knowledge necessary to survive the post-apocalyptic wastelands of Moscow.

The first two ranger survival episodes covered the human factions and the monsters that thrive in the metro and the surface. Now you’ll learn how to put them down with the weaponry available to players. It also delves into one of the most interesting portions of Metro’s universe – the bullet-driven economy.

Metro: Last Light will launch across the PS3, Xbox 360 and PC on May 14.