you can rack up some HUGE points in hardcore Headquarters, especially if a map like Rust comes up.
I'm not even that good at the game; i'm pretty inconsistent, but i went 106 - ~30, I got a lot of points for that match (that was freak, i don't normally do that
). with the right killstreak rewards, you can pretty much destroy everyone.
i use predator missile, pavelow, and chopper gunner. HC HQ has ricochet enabled, so using harrier or other air strikes is sketchy, way to easy to drop it on a teammate, and then kill yourself