There's a video on here somewhere a year or so back of Apache's offering support to some SF troops that were getting overrun and/or flanked by taliban. When they ran out of 30mm, they requested to use Hellfire missiles and got the okay.
Now I could swear this one guy near the end of the video was carrying a stolen Javelin missile --looked JUST like one. Doesn't matter though, it got blown to shit when the Hellfire hit --but not before it hit the fucker RIGHT IN THE BACK OF THE HEAD!!! Yeah, a head shot with a big ass missile at night. It blew up at his feet and disintegrated him instantly. So from an infantryman's perspective, it looked like a killer AP round to me, albeit a costly one.