I know there making the game more challenging, which i like and respect the devs for but you the knock-down animation is just u simply lying down and then trying to get back up is a 5 second wait due to the clunky Arma engine at least make a animation for the knockdown, i think this patch would be a winner if they changed chance of infection to something like 1/20 or something and getting knocked would be due to the ammount of blood your on, meaning that if u are on 12k blood the chance of getting knocked over is like 1/30 because your stronger and more of a healthy person, but if you have 7k blood for example your weaker and more likely to be knocked down by a zombie! :D