As you already know there is allays more than one way to skin a cat. So with that said I took the time out to demonstrate several ways out of many ways to do just that when it comes to Shooting from Cover & or Concealment. I sincerely hope that this gives you something to think about in terms of shooting form Cover and to Concealment.
I would also advise you to not get caught up in what it should be and the infinite amount of what-if scenarios. Remember you have to do what’s best in your given situation and nothing else. In the words of Paul Castle:
“Don’t try to be me and I won’t try to be you.”
And I’m going to follow up with:
"Do what you do, but when doing so make it do what it do."