I may have just screwed up this quest, I've already killed Jake and the Forged before getting this quest and now the quest won't continue, it just says kill Slag's remaining forged but there are none in the Saugus Ironworks left and there are no quest markers. Any recommendations? Reloading back to a previous save won't do as I'm pretty sure that's 10+ hours ago now when I cleared Saugus Ironworks.