Finally after 2 months of pure frustration I have managed to get my Alien Zombie to attack and inflict damage on my FPS player. It took a lot of time but Finally I got help on Unity Answers.com "Statement" solved my biggest problem. There is some fine tuning to do like add Alien Zombie attack sounds for when he attacks and then polish up their animations a bit more. but it's FINALLY getting somewhere.
Y'know what the most aggravating part about all of this has been,? It's that in my code it was only a few short lines needed to be added and one line needed to be tweaked.