Video on youtube ( forgot )

Hey guys , some weeks ago I watched a video on youtube ( it was a shooter game If I recall ) , the graphics were amazing and it were taking place in the sky. There were some "Mechanisms" that allowed the player to move to different locations ( he had something to grip ) , and some monsters came out of nowhere attacking him. And the only other thing that I remember is the end where the guy was with a girl and a monster or something came out of nowhere on a bridge , that's it. I hope I gave you guys enough informations to help me , thanks! :p

Edit: Nevermind , I found it. Bioshock Infinite :3