As the title of this video says,this song is made by Ill Factor for the upcoming "Assassin's Creed Syndicate" game that will be published by Ubisoft.
I do NOT,and i repeat,i DO NOT own this song,all the credits goes to Ill Factor,i uploaded it just for promotion purposes only,and i do not make any profit out of it.
Don't forget to visit the creator's SoundCloud page: https://soundcloud.com/illfactor
Buy the song from here: https://itunes.apple.com/us/album/assassins-creed-syndicate/id995324656