RobThom, I have to agree with you big time on the roaring monster crap. Every movie. Every game. Every sort of creature/monster/robot/villain. It's like they go to monsteranimation.com
and download a template.
So horrible and stale that I've actually turned off movies because of it lol, and use it to fuel my exhaustive rants about how cgi and art college anime emos are ruining everything, but I digress... the gameplay mechanics should illustrate a much better purpose for noises and footsteps, hopefully.
Seems like CA is committed to trying to make an authentic experience (trying = key word) so hopefully it will be for the most part believable.