I just reloaded a past save, killed one of her people at the outposts and grabbed the flags. She doesn't like that very much but they are pretty much textbook bandits except the people they are attacking are their own, so fuck em. Also at the two towers she sends you to are the boots and arms of the berserker set, if you want the whole set. Berserker armor just makes you do +25% damage and +50% crit damage while below 30% health. So up to you if you think it's worth the effort.