This weapons merchant commissioned me to destroy an armed convoy that was owned by his competitor. There were two assault trucks and one large truck in the convoy. I pushed a large barrel of explosives into the middle of the road and then took cover inside a wrecked train car with my rocket launcher at the ready. I could hear the engines of the trucks coming my way, suddenly they came tearing over the horizon. The assault truck in the front drove straight into the barrel and exploded, blocking the path of the large truck, which couldn't reverse because the second assault truck was right behind him. I fired my missile, destroying the big truck, and the resulting explosion caused such a voracious wildfire that it spread all around the rear assault truck and the men inside it burned alive.
Once the fire had finally died down I ventured over to teabag the seven men that I had just killed with one shot.
True story.
Far Cry® 2 - hardcore difficulty.