Hense it was called a modified gun blade similar to squalls.  The idea it self of a gun blade seems ludicrous to me seeing how vibration would do little to do little damage to the person. (Take a knife and cut into a piece of meat. Now before cutting all the way through. Push the blade side to side instead of back and forth. Besides the obvious pain,( if the piece of meet was a living creature )it would not be that effective in dealing more effective damage. And with the gun powder no where to escape (like a barrel, which my modified one will have in the blade) the gun itself is a bomb and would kill the user as well.

As for the sake of being somewhat original I added this instead of the normal blade because we already have a duel wielding gun blade user. (Which for sale of argument is just as crazy if not more crazy than my idea because gun gunbblade is suppositly supposed to be super hard to master, which is why you only see two users in the game. No offense just stating a point!)

Anywho my modified gunbblade will have an advantage in battle because people will think of its original design, not as a functioning gun as well. 

And I'll finish the cs sheet later I'm at work now Sooo yeah