What's a proper rifle then? Marksman rifle didn't seem to go through the front (or side windows), nor did Special Carbine.. There was one guy on full red just driving around and shooting everyone with his uzi. Nothing worked on his car. He even drove up stairs and crap, his car being completely still, no damage. I also had a guy with that car in a couple of missions, made the missions totally pointless, we just drove up to all the enemies and stood there, taking no damage.
On a happier note, I punished three guys that were in a strip club for their sins. Saw they were there, set up on a roof opposite and killed them when they calmly walked out.