Did you go straight into hardcore...it can be a little daunting without crosshairs the first time, took me a while to get used to iron sight firing after the console like MW2 spray and pray method.
Only good things about hardcore opposed to regular for me is less shots to kill, no minimap and no killcam...that said, i've played HC so much I get completely owned on regular.
Don't think so I still had crosshairs. I think I need to look at joining a specific server rather than the random one I was on this morning.
So hitting Q when an assualt drops ammo and when a medic drops a medic kit? Now I know why my team were following me around everywhere!

Is it best to stick with your team or wander around on your own?