Help making duplicated enemies fire back

I’m making a game and so far everything is going good. This is what I have so far… http://webpages.charter.net/rrahlf/Game.htm

I just cannot think of a way to get the enemies to fire back. The enemies spawn on a couple second interval function which duplicates a movie clip called enemy. I somehow need to make them duplicate a different bullet movieclip.

Any ideas?

Lemme know if im being to vague :stuck_out_tongue: