It's funny you mention sniper, I did have to kill one man while sniping. he was sneaking up behind some others and I was behind him. I felt really bad about it but I waited until the last possible moment hoping to use my radio to get the others out of harm's way. I felt bad, but knew that I had to stop him from killing others, I prevented an imminent murder. Other people I shot and was shot by have left me more conflicted.