This video shows you how to get on top of Orgrimmar in the latest WoW patch (2.0.4)
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There are no cut scenes, it is a continuous uneditied clip from start to finish. I start in Orgrimmar heading out to Durotar and finish from on top of Thrall's chamber and then inside it.
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This video was made without the use of any hacks, cheats, or third party programs. Completely possible on any live server any faction. Very minimal wall jumping is used, its a rather easy technique that doesnt take much practise and anyone can do this.
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Good luck, It's just for fun. :).