, might want to let it take other enemies (/its allies) into account through flocking etc. (unless you have only very few enemies ofcourse)

Also another input I would add would be health of nearby other enemies, so if one gets hurt this enemy gets alerted and enters an alerted state.

-edit: real neural network for game AI sounds interesting but at the moment it needs huge amounts of information and doesn't seem to add much to the current tricks for game AI (while being more complicated). Maybe a hybrid form using both could be interesting but still would suck up cpu and probably hard to get it right. I think if done right in the future this could be a good AI for e.g. multiplayer fps games.