Did the Zombie part of the slasher route, as evidenced by my last post. Love the ending where they are all on the pod at the end.
Then I did the Coming-of-Age Route, and confessed to Nozomi and we believed in the power of friendship in the middle of the final battle. Out of curiosity, I went back and killed Eito within the first two turns of the 3rd wave to see what would happen, but it just cuts to him calling me worthless and the cutscene proceeds as normal. Lame.