WORST FUCKING GAME I HAVE PLAYED... IN A LONG TIME.
Underwater timed level, escort level, horrible difficulty curve, sewer levels, Levels that last too long, quicktime events up the ass, you fall over for no reason, cheap enemies, glitches everywhere, terrible writing, things that don't make sense, OFFLINE lag, ONLINE lag, CoD shooting, there's no health ANYWHERE- so you need to go to earlier levels to farm for health-confusing boss battles, a messed up plot, MOAR GLITCHES UP THE ASS, picky controls, looks like a Michel Bay movie.
Save your money for Dishonored or Assassin's creed.