The problem is that Deadshot is one step ahead of Batman ... Initially observing Batman from a distance in Arkham City, Azrael’s motives become clearer in Arkham Knight as he asks to be the ...

It also includes Deadshot and Joker ... be playing the games in their release order- Batman: Arkham Asylum, Batman: Arkham City, Batman: Arkham Origins, and Batman: Arkham Knight.