Ah, well enemy A.I. is just spiffy. Watching one of these feeds, a guy is wandering around underground, and comes upon a fire ant. He proceeds to shoot at it with V.A.T.S. (incidentally, body still has a rating of 59%, while the head is 85$, and a small back leg is 95%, figure that one out), misses, shoots in normal mode, kwa-pings off a wall behind the ant, then finally shoots it smack dab in the forehead.
Ant doesn't even twitch from its position. Simply sits there looking around, attenae twitching. Took him two more shots to kill it (sniper rifle), and it never moved from place.
What, are some enemies suicidal now?