Looking for super knife

Hey. I've searched for atleast 30 minutes, and downloaded 2 super knives that were both patched. I'm looking for a very good super knife, that just gives me the basic super speed knife. Can anyone direct me to the correct, working mod? If so, thatd be great.

its patched. if u hack, just turn on rapid fire. that will make the knife go faster. not as fast as a superknife, but fast.

The hacks i use dont have rapid fire. :\ And i noticed that JA's hacks have them, but i was confused on how to get those to work. People say i need to use byte cipher with it or something? I have no clue what they were talking about.