Committing murder or claiming self defense, same things, just different afterthoughts. In the heat of battle, none of that matters, it is the enemy or your life. The Water Guard are jaded, having long served as Kazeth grunts. Many have fled Carneage carrying with them the foul smell of rebellion. Make your first lesson in Guard survival a hands on experience and teach those terrors their place on.
Well done poor soul, you managed to kill a quarter of a hundred beasts without a second thought. No questions asked, just destruction. Is this slaying some sort of sugar high to you? No matter, it is necessary to understand the Guard before crushing them.