a lot of people have been wondering about the infection chance being greater than 100%. To clear things up: 50% infection chance means when a zombie kills a non-hero non-zombie, there is a 50% chance of the killed non-hero non-zombie rising up and becoming a zombie. 100% means the above will always happen. 115% infection chance means that not only will a zombie always rise, but there's a 15% chance of TWO zombies rising.