At the end of one of the most important missions, Graves noticed König's absence, so he decided to send you to search for him.

When you arrived at the mission building you had the worst scene. König behind a desk bleeding to death with a gunshot wound to the abdomen

"C'mon"

You were trying to encourage him with your words and help keep his brain active.

"I'm tired"

He replied sad and disappointed for having failed as a soldier.