Both those albums are incredible. “Hell Awaits”, just like Metallica’s Kill Em’ All was production and songs that was right before those bands hit it big. It was before all the money and fame. Its when it was purely for the music and the fans.
I also enjoyed Slayer’s version of “Inna Gadda Davida” which was only available on the “Less Than Zero” sound track. Tommy got da pipes boyyyeeeeee!