Basically, it's a points marathon. They track your every stat and rank you in their ladder against the rest of the competitors. You don't have to do anything but sign up and play like you would any other day. They got booster busters too.
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It's sponsored by EA, Logitech and AMD. They give away cash to the top 3 and top 30 get merchandise like mice, keyboards and headsets by Logitech and merchandise from AMD, every month. It's open to all 3 platforms, PC and Consoles on separate ladders.
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The Battlefield 3: Global Rush Online Tournament | At7addak
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The At7addak.com Battlefield 3: Global Rush Online Tournament