First Thank you for the answers
I found a youtube tutorial about making a rapid fire controller only using a push button and some cables. I did that for some type of controllers that the persons have bought from other supplier. They have worked very well . I tried the same procedure with the one came with an xbox 360 an it doesn't worked. Please let me know where to find the model number of the controller for you. I have connected one cable to diode 1 and the other at the center pin of firing pushbutton. As i told you before this worked for the other controllers.