By Afghan context, referring to the use of a rocket or tank was hyperbole. We shouldn't actually level a house for a guy with a bolt action rifle. You just encircle the structure and wait him out.

If, over time as you operate in the battlespace, you realize there are tunnels involved, you change to address that element.

Now, if there are defenders (emphasis on plural), then tactics adjust as well, but I get where you're going with what you're saying.