I like the high damage, though I also liked the low damage in BC2...don't care either way. It does mean the effect of hardcore won't really change the damage. I mean, how much higher can you go? What hardcore does is enable FF and lower the amount of helpful UI elements and information.
I imagine tactical lights will be terrible on hardcore. When I'm blinded, the only thing to do is just shoot, whether it's a friendly blinder or not.