Really heavy Death metal tone

I have an ibanez tone blaster extreme head with the foot pedal a b-52 4×12 400 watt cab, with a ts9 tube screamer and an mxr smart gate (noise gate) and I want to get super heavy guitar tone out of it, this is the most awesome tone I’ve ever heard, and probably the heaviest, from death metal:

http://www.youtube.com/watch?v=UBfoMgllphs

the song is bloodbath-eaten, and I dont want exactly that tone, more like that crossed with this:

http://www.youtube.com/watch?v=r93CoC1N_SA&ob=av2n

that second song is emmure-I thought you met telly and turned me into casper
stupid name, I know, and not death metal, but still a heavy ass guitar tone.