As I noted, the guitars are going to sound about 25 cents flat to the recording, they either tuned sharp (Suffocation seemed to do that a lot on earlier releases), or it was a screw up with production. In any case, you can either take this tab as it is and play along with the song, or tune to D (might sound a bit better).

This song is fun as hell, blisteringly fast and still very technical. I'm not sure about the bass guitar parts (I'm not a bass player), particularly on Riff 2, so use your own judgement if you want to play those.

Drum parts are also a little bit iffy, but I feel like I did a good job, for not being a drummer anyhow. At measure 89 I can't tell if Dave is playing a grind beat with double bass (as it is shown now), or the double-bass/blast beat.