The game opens with Lara scaling a Siberian mountain, then cuts to the beginning of her adventure as she races to explore the Prophet's tomb in Syria before Trinity can destroy it. Ability Required to Proceed: A lot of areas early in the game are inaccessible until Lara manages to acquire the right tools to progress, such as certain special arrows and the lockpick.100% Completion: Achieving this rewards Lara the Thunderclap, a gilded break-action shotgun that can kill almost anything with one shot.