In the same fic, Austria manages to come across as terrifying, showing how despite resenting battle, he can calmly and coldly end his enemies if he so wishes.
What happened to the many victims of Doomsday. If the initial nuclear blasts didn't kill them, then either the fallout, mass turmoil, social breakdown or all of the above definitely did.
Russia's fate. While he does manage to survive, the cost he paid still weighs heavily on him. Not to mention being unable to stop Doomsday while there was still time and watching virtually everything and everyone he still cared about die horribly.