More zombies have been killed in the campaign No Mercy (L4D2) than the entire population of Rusk County, TX, population 48,568.
That is almost more than the entire population of Montgomery County, NY, population 48,695!

c8m1_apartment

Difficulty	Playtime	All 4 Dead	Points		Kills
Normal	7.55 hours	7	15,422	19,494	7,320	38
Advanced	0.00 seconds	0	0	0	0	0
Expert	0.00 seconds	0	0	0	0	0
Total	7.55 hours	7	15,422	19,494	7,320	38

c8m2_subway

Difficulty	Playtime	All 4 Dead	Points		Kills
Normal	9.33 hours	30	29,195	24,463	10,007	115
Advanced	0.00 seconds	0	0	0	0	0
Expert	0.00 seconds	0	0	0	0	0
Total	9.33 hours	30	29,195	24,463	10,007	115

c8m3_sewers

Difficulty	Playtime	All 4 Dead	Points		Kills
Normal	9.92 hours	35	30,040	28,292	10,507	120
Advanced	0.00 seconds	0	0	0	0	0
Expert	0.00 seconds	0	0	0	0	0
Total	9.92 hours	35	30,040	28,292	10,507	120

c8m4_interior

Difficulty	Playtime	All 4 Dead	Points		Kills
Normal	9.70 hours	29	25,189	31,357	11,884	97
Advanced	0.00 seconds	0	0	0	0	0
Expert	0.00 seconds	0	0	0	0	0
Total	9.70 hours	29	25,189	31,357	11,884	97

c8m5_rooftop

Difficulty	Playtime	All 4 Dead	Points		Kills
Normal	9.58 hours	43	30,640	26,926	8,917	148
Advanced	0.00 seconds	0	0	0	0	0
Expert	0.00 seconds	0	0	0	0	0
Total	9.58 hours	43	30,640	26,926	8,917	148

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