Left 4 Dead: Survivors Campaign Gameplay 05 - No Mercy: Rooftop Finale

Playing the "No Mercy" campaign on Left 4 Dead: Survivors on Advanced difficulty. No defibrillators around. How about that? "Blake Jordan: A bartender who worked in the hotel lounge when the outbreak began, and used to be a member of the army. He always tries to be positive, but he can't help but worry about the dog he left back home." Left 4 Dead campaign videos: https://www.youtube.com/playlist?list=PLpIFr_cwgWNbebHHHntJHMHc8G0hYO2a9 Left 4 Dead 2 campaign videos: https://www.youtube.com/playlist?list=PLpIFr_cwgWNatzAQegZzwh8EKZHj0r2O5 Left 4 Dead: Survivors videos: https://www.youtube.com/playlist?list=PLpIFr_cwgWNaASYqhy8AirKyGidGpAv06 2009-2010 Left 4 Dead videos: https://www.youtube.com/playlist?list=PLpIFr_cwgWNazyLgFHkOqb0caJRAM7u1D 2009-2012 Left 4 Dead 2 videos: https://www.youtube.com/playlist?list=PLpIFr_cwgWNaTFr8q-ya7EElcuPbiQHaD