GameStop Opens Call of Duty Add On Preorders

Grapevine-based videogame retailer GameStop said Friday that it has opened pre-orders for Call of Duty: Black Ops Annihilation, the latest add-on to Call of Duty: Black Ops. GameStop said the deal with Activision and Microsoft gives it exclusive access to the downloadable content release, starting today. The add-on will be released June 28th.