Mount & Blade: Warband

Mount & Blade: Warband

A World of Ice and Fire
John Snow does not give you the Dragonbone bow instead you are meant to battle him?
After the battle of bastards when the player helped John Snow win, John Snow summons the player over but nothing happens when the player talks to John and then a battle preparing screen ensues where the player can do battle with John Snow's army? Is this a bug?