Log in to Xbox Live Rewards {link no longer active} and explore the legacy of Modern Warfare by browsing an interactive timeline of the franchise. Use your mouse to click and scroll through the timeline. Hover your mouse to navigate and explore assets from CoD games of the past. At the end of the timeline, an engagement called “Bite the Bullet” challenges users to guess how much ammo there is in a metal box. Players that guess with the highest overall score in their country win a 3D HDTV. Fans can also browse through CoD gear and join Elite and start digging in.