The Sacrifice Stats (Coop)

More zombies have been killed in the campaign The Sacrifice than the entire population of Chicago-Naperville-Michigan City, IL-IN-WI, population 9,745,165.
That is almost more than the entire population of Los Angeles-Long Beach-Glendale, CA, population 9,878,554!

c7m1_docks

Difficulty	Playtime	Points (PPM)	Kills	Restarts
Normal	5.17 months	5,953,736 (28.57)	2,312,094	1,425
Advanced	1.11 months	4,923,197 (110.39)	425,568	533
Expert	4.45 hours	8,100 (30.34)	1,779	30
Total	6.28 months	10,885,033 (42.99)	2,739,441	1,988

Difficulty	Playtime	Points (PPM)	Kills	Restarts
Normal	6.29 months	8,125,241 (32.04)	3,301,761	2,746
Advanced	2.14 months	9,541,926 (110.38)	915,062	614
Expert	2.47 hours	5,237 (35.39)	1,270	8
Total	8.44 months	17,672,404 (51.95)	4,218,093	3,368

Difficulty	Playtime	Points (PPM)	Kills	Restarts
Normal	6.09 months	5,371,621 (21.88)	2,344,589	10,161
Advanced	2.12 months	6,841,264 (80.21)	445,425	1,009
Expert	1.10 hours	1,569 (23.77)	597	10
Total	8.21 months	12,214,454 (36.92)	2,790,611	11,180