Aqui pongo lo que me han mandado, si alguien hiciera el favor de explicarmelo se lo agredeceria.
Because of your commitment to be a part of our community, you've been selected to participate in the Call of Duty: World at War Xbox 360™ Multiplayer Beta*! Please click the link below to activate and receive your Xbox 360 MP Beta Token. You will have until October 19th to click the code below and claim your token before it expires!
Remember, we want to hear from you! Please come back to CallofDuty.com and give us your feedback, what you like and what you'd change to make Call of Duty: World at War the best experience possible!
* The PC Beta is coming up next! Stay close to CallofDuty.com and check your email for details soon to come!