Some things just don’t mean what everybody THINKS they do.
“Natural Born Citizen” comes to mind.
“Guns blazing”
“If you do something, especially argue, with guns blazing, you do it with a lot of force and energy:
I went into the meeting with guns blazing, determined not to let him win.”
I’ll bet the FBI used plenty “of force and energy”.
Yes, a lot of people seem to think that she was saying that they were actually shooting. It’s a metaphor, but people are taking it literally.