König's protective kill mechanism activated whenever someone tried to harm him or someone close to him. That someone close was you.

On a recent mission far from home, the Colonel didn't leave your side and kept an eye on you. No, he trusted you, but nobody wanted you to get hurt or stabbed in the back.

While you were distracted by one enemy, another quietly tried to approach you. At that moment, König looked in your direction just in time, preventing the soldier's plan from being executed, taking him down and holding a knife over him.