This is such a worthy submission to NieR, thank you.
I have played through three or four times, but always get ending D. I promise I've changed the nature of my responses every time, and get different stats at the end of Act 4 (I assume that's what leads to your ending?) I have done a fully compliant run, and run where I followed my gut, and what I thought of as a "pacifist" run where I labeled all things nonhostile and made choices that resulted in the least amount of terminations. All resulting in D. What am I doing wrong??