The story line is additionally divided into some subchapters where you can read about initial quests (optional but must be completed in specific order), information about factions you can choose to be loyal to during a game and quests connected with them, detailed description of these quests and finally game ending quests including fight for Hoover Dam. The text is divided into three main sections - the story line, side quests and maps. Description covers information about possible solutions of specific quests and their endings. This guide to the Fallout: New Vegas provides a detailed description of both the story line and all side quests.