Guild Wars latest State of the Game address the issue of ganking. Many people take this problem to heart. Read on to here what they have to say.
The newest State of the Game article is subtitled "Snatching Victory from the Jaws of Defeat: Basic Ganking." It outlines the purpose and the processes used by a split team during a GvG match, and provides details on common components of a split team, how teams deal with opposing defense, and some of the factors that lead to a "gank race." Check it out here.
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