I had the 3 PC; on the xbox one graphical improvement is clearly visible (beautiful) The story is virtually the same and the gameplay. You feel replay at 3 in a different decor with enemis / visually different friends. I do not play in coop lack of lack of players in the public rooms, unfortunately. I noticed some bugs, but nothing wicked good. If you liked the 3 you will LOVE 4. I removed one star just because its feels warmed, no big major developments.