I'll concur with and reinforce the two important aspects of @A Canadian Cat 's application of Hull Down:
1/. My Hull Down move point will still stop short of the crest, so even if things go wrong, the tank will still be partially hull-down at movement end.
2/. I always place the associated target command on a area, not an enemy target. The enemy may vanish, my tank may not spot him quick enough, etc, all which may lead to a failure of the hull down algorithm. But a physical area of the earth ain't gonna change...
1/. My Hull Down move point will still stop short of the crest, so even if things go wrong, the tank will still be partially hull-down at movement end.
2/. I always place the associated target command on a area, not an enemy target. The enemy may vanish, my tank may not spot him quick enough, etc, all which may lead to a failure of the hull down algorithm. But a physical area of the earth ain't gonna change...