Alright I am the same person as the OP (finally made an account), and let's make this clear: When you knife someone with a low ping (50-100), and you have a mid-high ping (150-200), and the other person knifes you as soon as he sees you, and you do too, you get the kill. I guess the system works completely client based and not host based... Maybe I should suggest that to aIW xD