Metro 2033 Redux - Rescue Ranger & Invisible Man achievement guide

Front Line is a very large level with many enemies, but with enough restraint and caution, players can avoid all combat. Rescue Ranger is an achievement in Metro 2033 and Metro 2033 Redux, awarded for rescuing the prisoners on the level Front Line. Invisible Man is an achievement in Metro 2033 and Metro 2033 Redux, awarded for completing the mission Front Line without killing anyone. Stealth kill the enemies by pressing 'X' on your controller. You can also watch live at http://www.twitch.tv/f3arday1mark