Well, well. Ultimately, time is on the side of the dead. Doe's rampage planted the seeds of his defeat by allowing Necromancy to work far better than it would have if he carefully avoided casualties. I enjoyed that little battle between giants, a bit like an episode out of the old school TV version of Eva.
How Doe managed to escape that massive explosion completely unscathed for a "this isn't even my final form!" round 2 manages to escape me. It's like plot armor was applied to allow Dwight to personally finish him off with the sword.
Now the question is, will Dwight raise him from the dead to serve? Or is he staying dead like the heroes that came before him?