knife throwing in modern warfare 2

most people think that knife throwing in call of duty modern warfare 2 is very difficult. I also thought that throwing knifes were difficult to begin with but once i got the hang of it I started getting insane knife throws. The reason that throwing knifes are my favirote is becouse they can kill with one hit and if youre very good you can even kill a person with a throwing knife while they are shooting at you.