How to force a faction leader to attack me ?

[Kait]

Hi ! I hope it's the right place to ask this.
I'm playing kind of an RP playthrought and I'd really like to have the pirate faction leader joining a raid against me.

Problem : if I make him spawn using debug command, he instantly runs toward the edge of the map and disappears without even trying to fight.
So is there any way I could force him to attack with his fellow pirates ?

Thanks !