Campaign themes L4D & L4D2 (Slowed & reverb)

Campaign' start themes, but slowed: Timelines: 0:00 - No mercy 1:34 - Crash course 3:17 - Death toll 5:00 - Dead Air 6:41 - Blood Harvest 8:21 - The Sacrifice 10:39 - Last Stand 11:10 - Dead Center 13:38 - The Passing 15:19 - Dark Carnival 17:04 - Swamp Fever 18:47 - Hard Rain 20:24 - The Parish 22:23 - Cold Stream