Movie clips

Ok well I am trying to re-make a the classic Duck Hunt game for my Final Project (I’m in HS)

I am having problems with the movieclips I am trying to set an actionscript so when I left click on the stage it will play the “recoil_mc” movieclip but instead it will only play the recoil_mc. The same thing for the Crosshair. I have a static crosshair and then when clicking I would like it to play the “speading crosshair.” This post is probably quite hard to follow so I have attached the .FLA files. I’m rather new to Flash and Actionscript. So any help would be appreciated.