I never play "normal" mode. It's stupid you can show up on the mini-map and then have a big effing colored triangle over your head to really make sure people can kill you...
Painting targets, the 3D targeting triangle, is pretty lame when the triangle follows you. I can always tell when someone found me because I was target painted versus someone who's cautiously advancing somewhere. I'd much rather see something like a red triangle or triangles appearing over the spot where someone was standing when someone spots them rather than the triangle following them, in normal and hardcore, because most of recon's gadgets don't function properly without a mini map.
edit: HOWEVER, seeing a friendly's triangle above the head of an enemy THROUGH WALLS is the cause of about 1/4 of my deaths. What I mean is I'll find someone but I think they are friendly because a blue triangle is near above them and they turn and kill me. I wish they would do something about that.
I found hardcore to be the appropriate "feel" for how much damage someone should take before they die. Normal mode blows my mind with how much I have to shoot someone to kill them and it throws me off coming from hardcore.