Thanks for the input.  My main focus due to a lack of time ended up being the mechanics (I joined with 8 hours left).  I was originally intending for the wildlife to be some sort of radiated animal like species, which seems to have worked slightly.  The original point, which  I honestly forgot to put in the description was to survive as long as possible as each wave should if the software works right get larger.  I suspect the animal damage code broke when I uploaded it leading to them dealing no damage.  Thanks again for all the input.