Noticed that as well, eyes are always wide open, lips never moving, helmets GLUED to soldiers heads. I really can't get into the minds of TWI, creating so much atmosphere, soldiers "battle talk", the amazing death cries (that are now bugged and gone and I hope TWI, who confirmed it as a bug, will return them).
I mean, put all those excellent small touches that actually make a big change, but have the characters, who look great, just have robotic, cold, never changing faces?
yes, moving mouths is a standard nowadays. at least that. I hope someone up there reads this thread and puts it on a "to-do" list after the game gets its critical cures.