Generally, our troops, including the special ops guys, use what we call "cordon and knock": they set up a perimeter around the target location to keep people from moving in or out,and then announce their presence and give the target an opportunity to surrender. In the majority of cases, even if the perimeter is established at night, the call out or knock on the gate doesn't happen until after the sun comes up.
Oh, and all of the bad guys we're going after are closely tied to killing and maiming people.
What might be amazing to American cops is that the vast majority of our targets surrender when called out.
Got that? Our military, when looking for enemy combatants, doesn't even do no-knock raids or knock and announce raids!
It's getting harder and harder to understand the justification for most SWAT raids.