Well this is dissapointing. I tried installing it and my computer froze. I tried downloading the game again thinking I had a corrupt download, but it still didn't work. Sounds like I'm not missing much though.
It is mostly graphical upgrades from what I can tell, but then again I have never been a huge fan of the series, as it always seems to favor historical periods I was prejudiced against finding cool cause of a certain couple of history teachers I had. But it definitely is good, and I'm able to run it pretty well.