Nobody knew this day would come. Noone ever imagined Ubisoft making a decision like this. For ten long years Ironside has been doing Sam Fisher's voice, and now all of a sudden they want to change that for the sake of better and more realistic gameplay. And frankly i can understand the decision to make a game more realistic and even the fact that Ironside is physically not fit for the task but there are so many options that could have been explored like, keep the voice acting and let someone like Eric Johnson do the physicall part. In Final Fantasy the Spirits within they also used mocap and added the voices later.