I understand the point you are trying to make, but again in times of war, casualties are likely to be high and nondiscriminatory.
I fully expect high casualties, but death will never be truly nondiscriminatory in these games, nor should they be, in my opinion. For it to be truly nondiscriminatory, the dreaded permadeath would have to make a comeback.
In any case, my basic point is that having the number of main character deaths be fixed at a higher percentage does not automatically make the story better; it only makes it bleaker. I have no problem with being able to choose this, or even lose everything (which we can), but as it is, the idea doesn't strike me as engaging or enjoyable.