The marines are in full pursuit and absolutely determined to annihilate their foe. I'm sure that sounds harsh to politically correct ears and those for whom this type of violence is anachronistic. It does not sound foreign here...it is status quo.
I'm no warrior but I have read history and this does not sound at all strange to me. It is wonderful. And necessary.
As the Chaplan says...it is status quo. It is necessary and has been brought about not by our actions or desires...but by the atrocities of our enemies and the firm commitment of our personnel to put these rabid animals down before they hurt and kill others.