Someone screwed up the embargo and posted early. Still available via cache.
http://webcache.googleusercontent.com/search?q=cache:https://www.youtube.com/watch?v=TXAVHDhbfg4
Animations look wonky but other than that it looks pretty fantastic. Some stealth elements added into the combat.
lock if old
edit, video has been made private.
Here is another video of the same area: https://www.youtube.com/watch?v=d5nfXqffvyc&feature=youtu.be
Here is a link where you can download the original video: https://mega.nz/#!4Y50DZjB!Q5AsmsCzR3-XM_9F7flhTn2CTZEWaicEcY1od9XNQ4s