Level information

Lara has heard about the Golden Mask by chance. After a little research - Lara knows roughly where it is - at Fortress Stonerock. Also, she knows that she has to find two bullets, called Bullet of Glory to enter the Arena of Death, whatever these things may be. But she is not alone, her enemies are already at Fortress Stonerock, and they want to find the mask, before Lara does. Will Lara find the mask before the enemies?