There'll be no HUD, scarce resources like ammunition and gas mask filters, and enemies will be far deadlier. Take up this challenge and you'll get an exclusive Russian AKSU.
It's the "ultimate challenge" for Metro and FPS veterans who don't want a theme park ride but a descent into hell. There's a 'Special Pre-Order Edition' available at GAME.
"Recommended for Metro veterans, Ranger Mode offers the ultimate challenge, featuring a HUD free display for increased immersion, deadlier combat, and dramatically limited resources such as ammunition and gas mask filters. Players who dare to rise to the challenge will benefit from a unique Ranger load out, including an exclusive weapon, the Russian AKSU, and be rewarded with additional 100 military grade rounds with which to customize their starting equipment." The press release also revealed the GAME edition offers the high-rate of fire machine gun, the RPK.
Metro: Last Light releases on Xbox 360, PS3 and PC May 14th in the US, 17th in Europe.