I still think the everyone group together and hit one of the enemies flanks is the best plan. Our group is small enough that we won't get in each others way, but they can't bring their full force to bear without surrounding us. They'll have to walk through the rough terrain to do so and we'll be done with the flank we hit by the time they can. Let's take advantage of the fact their force is scattered about. It's not like we have to worry about them just walking past us and taking a castle or something.