In my experience HC in this game is a load of bollocks, the only guns which become utterly deadly are the sniper rifles. With all other weapons it still takes an absurd amount of fire to kill someone. The only difference is instead of it taking 20 hits to the chest with to with an assault rifle, it now takes 17
It results in 99% of HC games just being a server full of camping douchebags with 1 hit kill death rods covering every molecule of open ground, which you cannot avoid crossing as there's very sparse cover. The instant you show your supple flesh you have a hand full of these guys targeting you, and with those odds you are going to die a lot of the time, even if they do suck at aiming. You even get guys with something stuck on their screen for a crosshair running around 1 shot killing from the hip with the GOL sniper. You can literally be face to face hitting them with fire from your AR but they fire once... BANG you're dead!
This is an accurate description of the gameplay in every HC server I've been to, maybe it's just Aussie players being bastards, I don't know, but it's the reason I don't play HC at all any more.