PvP Zerg Trains VS Solo PvP

The game will be balanced for group pvp, so most likely it'll be closer to zerg-like fights rather than single pvpers running around and picking people off. No one's stopping you from trying though. L2 was also party-balanced, but buffs allowed some of the more OP pvp classes to fight against smaller groups. Considering bards will be present in Ashes too, I'd assume smth similar will work here as well.

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Steven even talked about small instanced fights for groups of potential mercenaries during sieges. And there'll be several goals during a siege so I'd assume good big guilds will definitely split up into smaller parts and try to attack several places at the same time.
https://ashesofcreation.wiki/Sieges

And here's what I see as zerg (though still somewhat small imo)
https://www.youtube.com/watch?v=KwYSPH7uGEw