I think what you should do is wait for now and let the GM control the elves. You could write that you can see the enemy and tell the group what they might be facing. You could also tell them were the husband is. As for actual fighting, I'd still say wait, but when it does happen let the two warriors take lead while the Dalish and Airthel can provide cover support or something. Than your dude could sneak in, take out some bandits one by one, than get into a duel with the leader boss. But just so you know, he is not easy. He'll likely kill you in single combat. He's like, four levels higher than you and is wearing tier four equipment.