during battle you should be able to select your monsters and target buildings... i send my monsters in and they just go towards whats closest to them while getting shot.
i really like the concept... would be great if the other zombies actually came after character... they just shoot at the brick wall and somehow that hurts me?... animate the zombies getting their limbs and heads blown off and falling over to die... then unload the clip.. needs work.. but good concept... make a version 2 and 3 and so on... and let me know so i can play em.!
Consider it done.