I like me some Martyrdöd but I'm not really into that whole post-rock/atmospheric sludge/melodic crust thing myself. Those types of bands really don't have much of a connection to metal (at least to me). Reminds me much more of the whole 90's post hardcore/screamo/emo violence sound more than anything else, perhaps also bands like Neurosis etc. Don't hate it or anything but I just prefer the original Hellbastard/Amebix/Deviated Instinct/E.N.T./Aus-Rotten/Nausea/Axegrinder style.
When I think of crust that has things in common with metal I think of newer bands like Swordwielder, Hellshock, N.D.T. or Ewïg Frost.