Shooting at cover with a rocket launcher

While looking at some replays, I have seen soldiers manage to hit cover - blocks and windows - using a rocket launcher. However, when I shoot at cover with a rocket it sails over the top and hits whatever is behind it.

Obviously, sometimes you want one result, sometimes the other, so how do I order a rocket solider to explicitly shoot at cover or over cover?


If your unit is ducking when it fires, the rocket will hit cover, while if your unit is standing while firing, it will fire over the cover.