User blog comment:Master Sima Yi/Assassinews 19-03-'14 – Two Assassin's Creeds for 2014?: Unity and Comet/@comment-4928711-20140610164725/@comment-3046679-20140610174308

So, Black Flag was different, as it was basically Desmond's Journey, except with a mute.

The only way Unity would be different if it was a 2D side-scroller.