Replace a Theme's .PHP file with a Short Code? Is it possible?

So this is the theme: http://themes.muffingroup.com/bretheon/ At the top is a slideshow. I just want to completely replace that slideshow with a google map instead, that is the same size. Im using Maps Marker Pro, its a google maps plugin, and it gives you a short code to embed the map on pages. But How would I embed it into that frame area of the slideshow?

The theme>editor file where the slideshows php code is, is called “header-offer-slider.php”. (There could be additional files for its code, idk). But obviously just deleting that php code and pasting in the map shortcode for the google map does not work. Any idea how to do this? You have to edit other .php files also right? Please be specific is possible.

This might help, here is a screenshot of the code, and the other .php files: http://s22.postimg.org/hd576h3g1/dasgfvdsafv.png

Thanks