Doesn't in any way. Like any other mod it's just a seperate PBO file, the mod make did include a few single player misssions to try though, rest is for the editor.
im a arma 2 noob, last played anything similar was operation flashpoint old game i know, so basically you can create your own missions and use the mod to populate your cities with zombies.
 
	 
  
 
		 
 
		 
 
		
 
 
		


 
 
		

