I was thinking about knifeing in the next cod game and this is what I came up with. If it is still the same as black ops with buying/cod points then when you start out at lvl1 you don't have a knife basically u hit the knife button and u punch(2 punch kill) then u can keep buying new knifes like small knifes/some sort of shooting1(aka ballistic knife) and they keep getting bigger and u pick one that fits u like rusher u have a knife with less time to recover after knife or sniper/camper would be one that has a far knife range,bigger knife but slower time to recover.

Lett me know what you guys think comment below some other ideas and if u liked mine.