On the final mission when you're heading toward the Black Hand, you get ambushed by a captain. I think it's the one who's killed you and been killed by you the most but I'm not sure. I'm trying to get a certain uruk to become that nemesis or at least be one of the ones I kill and he comes back, so I let him kill me a bunch of times. But after he kills me like 10 times I tried killing him, so he'd come back with a scar or something, but he just stayed dead. I didn't behead him but he was replaced in the sauron's army screen. I'm wondering if there's a way to "choose" who your final nemesis is. Does anyone know?