That’s the thing, hardcore mode is all about teamwork, movement, positioning, mid range engagements, making sure that if you’re a sniper to operate in the counter sniper mode instead of racking up as many kills as possibe and throwing as many rounds down range as possible.
Standard mode is about getting in as close as possible and keeping the cross hairs on the other guy – better than he’s keeping the crosshairs on you.
Eg Quake vs Team based shooter