From what I can think of now...

Openings:

Morbid Angel: Caesar's Palace
Slayer: Metal Storm/Face the Slayer
Slayer: Hell Awaits (album intro)
Megadeth: Lucretia

Endings:
Obituary: End Complete
Carcass: Empathological Necroticism
Slayer: Hell Awaits (album ending)
Impaled Nazarene: Suffer in Silence

This is crazy, too many songs to list.

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