hey as i have found out to many pains and frustrations those who dared to buy the model pack 52 and are having trouble with ai on spiky then here is a quick solution.
go to scriptbank and make a folder called virus testers, then copy the jaws script from the virus outbreak scripts folder. put a copy in your made folder.
then open and simply change the soundsets to spikey in the intro and attack sections. then just add plraddhealth=- (your damage) i put 20 then save as, then change the name to the same as spiky _main, then overwrite in the original folder and then run and play you should have a fully working nightmare beast.
then erase your made folder.
do not forget to sort your shaders out, its a lot of messing but worth it if you sort it.
also note any trouble with the others do exactly the same i have them all working with shaders too. just get the orig pic then make a normal and specular map and mess with the lighting on the specular then it is x10
an unquenchable thirst for knowledge of game creation!!!