Expulsion, the new band featuring Matt Harvey (Exhumed/Gruesome), Matt Olivo (Repulsion), Danny Walker (Intronaut, etc.), and Menno Verbaten (Lightning Swords Of Death), have premiered a new song titled “Altar Of Slaughter.” This song is from their debut album “Nightmare Future,” which will be released on July 14 via Relapse Records. “Nightmare Future” Track Listing: 01.…