A huge improvement over its predecessor in pretty much every aspect.

The map alone, which shows where you have already been and where you are at the moment, makes a huge difference. Also, thank goodness there were no more pure action sequences, but always stealth passages, which were very varied. The missions are much longer (at least that's how it felt to me), which partly contributes to the atmosphere and immersion, but sometimes also means that individual missions drag on a bit and seem a bit tough. Especially towards the end, I just wanted to get through it because it dragged on so much.

The story isn't all that original but is told in a very natural way - you overhear conversations, read diary entries and get a really comprehensive picture of the world and the story, which I thought was great. The German dubbing is also well-done again, even if it's a bit bumpy at times due to the many English terms used. All in all, a really strong sequel.