I always wanted to play a game where it was sniper vs. sniper. Kinda like that Tom Clancy book where there are two people on two nearby mountains and it takes them weeks before one of them finally gets the chance to get a shot. Obviously, it would be boring to do that for weeks on end without any sort of reward, but I could see waiting a couple hours, scanning every tree for some glimpse of someone hiding with a sniper rifle.
With that game Sniper, that's what I was doing. I wouldn't kill one soldier except my target and I would crawl and sneak into range and kill my target and sneak away.
It was until a few levels later that I screwed up, was almost dead, ran in guns blazing and killed my target and got out of the area and said my mission was a success.
I was upset, but I will more than gladly replay the first three levels exactly the same way, don't kill any soldiers unless it was your final target.