Can't say for sure, but I would say heavy, death or progressive if I had to guess.I'm fairly certain the intro was followed by fast drums, Heavy guitar and growling vocals.I might be wrong, but I think this band had clean vocals in some songs/choruses, kinda like killswitch engage, five finger Death punch etc.I know it's extremely hard to name a track just from this vague info, so if you can remember any songs with acoustic guitar in the intro, just throw them at me.