Give us the option to duel people by selecting them in open world, and sending them a duel request.
This is a basic mechanic that most if not all MMOS have, I think you should include it in this game as we'll.
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Edited by REV3RSEReLAPSE: 10/9/2014 9:37:41 PMI can see it now a warlock and a hunter meet on the deserts of mars a stare down commences then both draw a fusion rifle charge and fire killing each other... Haha