Wait, they have basslines? I thought they were all just like this:
G|----------------------------------------------
D|----------------------------------------------
A|-----------------------------------------------
D|-0-0-000-0-0-000-0-0-0000-0-0-000-00-00-00-
Just kidding, I played in a hardcore band called Seconds Before Burning (Now they're Lady Binn Hill) for a couple months to help them out (they were friends of mine) till they got a bass player. It was awful. Every time I tried to actually PLAY my bass it was "that doesn't really fit with the song" so most of my time was spent with my left hand picking my nose or scratching my rear end while I chugged away on a bunch of open drop Ds. A lot of hardcore music is about the rhythms I guess, and not the notes (that's cool if that's your thing though! Hooray for free choice!).
Hey, what's up with the 11 breakdowns in every 3 minute song?

hehe I'm just pokin' fun. No harm intended.
There was a band from somewhere in New York called Stifling Neglect I really dug, and their bass player Lorenz was good (and a cool dude) when they opened for us at Yesterday's in Wheeling, WV. Check 'em out if you ever get the chance, though I think they may have broken up now.
Jake