Orion uses synth and wah and some other effecs in the intro. the part linking the first 2 riffs is bass, although some think it's guitar. The short solo after the big bend is bass. Theres 3 layers of bass there. Root notes of chords, finnishing of that nice bass line and the solo. Anesthesia, Seek n destroy, ktulu, bellz. These songs use distortion also no remorse uses it at the end i think.