Activision has announced the sale of limited edition Call of Duty dog tags that will benefit the Call of Duty Endowment, a non-profit that helps veterans find jobs by assisting organizations that provide job placement and training services for veterans. You'll find these limited edition Call of Duty dog tags in several major store chains across the nation, including GameStop, Walmart, Toys "R" Us, Best Buy and Target. Activision will be donating proceeds from the sales of the dog tags to the Call of Duty Endowment.