Left 4 Dead No Mercy Solo,43 Apartments,00:07:02.00,00:00:42.00 Subway,00:29:56.00,00:02:17.00 Sewers,00:51:03.00,00:02:06.00 Hospital,01:21:07.00,00:03:00.00 Rooftop,02:04:12.00,00:04:18.00