On open world pvp zone?
Pvp servers?
Even WoW is limiting it's open world pvp content because it simply ruins the experience for most of the players. Nothing fun in roaming alone and get gangbanged by a bunch of players, or simply being destroyed by a better equiped or higher level player. Or maybe wanting to do quests or events, and theres a whole legion of oposing faction dudes waiting for you to get some murder.

It looks exciting when you think that it will be balanced and that people will join it. It doesn't look so good when anybody of your faction wants to help or aren't interested in that kind of thing.

Leave pvp to pvp and PVE to PVE.