Easter Egg: Assassin's Creed IV Black Flag - Blume ctOS (Watch Dogs)

Came across a cool easter egg in Assassin's Creed that talks about Blume and ctOS from Watch Dogs, which came out a year later. I show you where to find the easter egg and the files.
I also talk about some easter eggs in Watch_Dogs that reference Black Flag. Including the fate of the missing CEO from Black Flag. I don't talk about the father and son playing Assassin's Creed 2 in Watch Dogs. That's a very well known easter egg that many have shown off.