Which he didnt take any lives except the groups directly responsible. So maybe he wont continue to kill terrorists, I dunno. But the ones he did kill were part of the organization that killed the Prof. and the soldiers he was with.
Your also assuming he decided to quit making weapons because war is war, but their are amny people who think their are justified wars. So assuming he is someone that thinks war is war is a stretch, not a bad one but the way the movie played out it appears he was more wanting to make right that his weapons were used for evil rather than he was dramatically turned into a peace monger.
