Ah ha! You have the same problem I have
. So far nobody has suggested a solution that works. It must be a bug in the demo. So people that are getting past it... explain!
Zooming in won't let you target them at all because they are out of your view, period! They only appear when you target other hard points. So you can't actually target them... unless there's some way to "Rotate" your view, not just zoom in and out.