Uncle Socrates

Hello CM community, I'm new to the game and I just had a quick question: I'm playing CMBB and I'm doing the "Advanced Turtorial" as found in the back of the manual. I'm having trouble getting the assault guns into "hull down" positions. I'm doing exactly what the manual says, however.. I put the waypoints over the little crest of the hill, and on the way there they're supposed to "look" for a hull down position relative to any enemy. Well, either the SU's stop 30m before the crest even begins, or they go to the top, completely revealing their hulls. So, what am I doing wrong? and how do I know if they're hull-down? Only when I target an enemy and a "hull-down" line comes up? Any help or advice would be appreciated. :cool: