Today I decided to throw a look at the script that controls the enemy behavior without actually expecting anything unusual. 

I never really looked at that script after I created it long ago through a process involving lots of trial and error, as it seemed to function. But today I noticed some rather obvious errors which should have been sufficiently serious in their impact  that I should have noticed them earlier. 

I wanted to postpone working on this as I have zero time for it at the moment, but I still ended up fixing any errors that I could find. Now enemy behavior should be more logical and less erratic.