Customizable faces ranks pretty low on my list of needs for a game like this. Not only are the characters generally smaller for the camera being frequently zoomed out (and thus, harder to discern much feature differentiation), but they also frequently wear helmets that hide the features anyway. I would much prefer customizable body types (e.g tall, short, fat, skinny, etc) if that didn't require much or any reworking (i.e. resources) of armor and clothing models to match the different body types.
