Jack made zig-zag moves to make himself a harder target to hit while taking out recovery potions to drink. The players that followed him before were already enclosing. He could see them now. There were six of them. Eight if considering the two gunners.
This team had positioned themselves in a triangle with Jack at the center before executing their attack. That's why they had taken some time before taking action. With two gunners attacking from a distance and six players attacking from proximity, they could continue to wear and hinder Jack's movements, allowing the two gunners to land hits whenever possible.
"Good strategy!" Jack exclaimed to them.
"You still have the mood to chat, you are as laid back as was reported," uttered the lead melee who approached.