The Aum94 resources download fine here. The enemy stops and fires, and then starts chasing the player again (if needed), but this happens very fast because the shooting animation doesn't have too many frames; you can play with the shooting animation speed to change this behavior.

The enemy AI will get even smarter in the following update. Oh, and a 3rd person shooter is practically a 1st person shooter with a different camera and a model with lots of great looking animations.