I got rid of all of them after 25 days. As soon as I start fighting orcs, especially orc holds with a lot of warriors, they are just utterly useless and I’m better of getting a few extra melee damage dealers. Preferred with axes so I can smash those pesky shields. If you form a circle shieldwall with about 2-3 billhooks in the centre of it and you can take a massive amount of orcs on and not lose anyone.