Graphics: It's all right as it is also on low-performance PCs still good elevatably. Nevertheless, I am not clear why four months porting time was not sufficient to the graphics to the then current PC hardware adapt. In addition, various Grafikbugs exist, certainly interfere with the game.
Sound: Sound is different not great from the predecessors. Soundtrack fortunately similarly successful as its predecessors.
Gameplay: Unfortunately, many gameplay technical strengths of the predecessor have not been included (!). For example, the controller responds poorly, the PC control generally scars on the border of unreasonableness. There are very annoying bugs and the fighting degenerated often pure Reihenkontergeschnetzel that are very fast and repetetiv anything but even remotely begin to have tactically. The ability to train other assassins and summon for fighting is nice, but is often not needed.
Level Design: Optical less diverse than its predecessor, it is open only Rome for semi-free exploration, although there is some sideshows (Montereggioni at the beginning, some other places during the Da Vinci missions), but this can not prevent the player bored quickly becomes. The possibility of removal of abandoned shops as subsequent revenue stream captivates not really. Every now and then there are some monumental structures like the Colosseum or the Castel Sant'Angelo to climb or to explore ancient, populated with criminal gangs catacombs. Sorry, missing also present in the previous collection quests (example Assassin seal, springs). The quite interesting story is not nearly as long as in the predecessor, so the entire game is poorer substance again.
Multiplayer: nice pastime in between, however, burdened with their own bugs and many hackers. Today the MP is already played by anyone.
Criticisms with which I base my rating on this conclusion:
-Less Extent in story, world, side quests, number of special places
Graphic not improved compared to the predecessor version and console
-Schlechte Control, particularly in battles, stripped-fighting system
-Keinerlei Playful challenge and less enabled options for closure of the mission objectives
-shorter Story with less draft
-Kaum Motivation in SP but also MP
-Bugs, AI weaknesses
-Repetetive Game elements (especially fighting and counter animations)
Finally, it must be said, the Brotherhood is still better than his successors. Unfortunately, this formerly very values playing series is designed for very commercialized and apparently for undemanding couch potatoes ...