getting metalcore tone

hi all , heres my situation i have a randall rh200c head with a randall 2x12x1x15 XL cab and a randall 4x12 and i have a Les Paul Smart Wood all stock, im currently using a death metal pedal (the older model) but im lookin for a new pedal or mabey just some settings for my amp and pedal that will suit a metalcore/hardcore band ,i want similar sounds to, bury your dead, between the burried and me, killswitch engage, as i lay dying , and so on any help would be AWESOME :D [FONT=Georgia]please help[/FONT]