On their surprise second album, supergroup Killer Be Killed outgun their 2014 debut with help from new member and Converge drummer Ben Koller. Recorded in secret over the last few years,Reluctant Herosees former Dillinger Escape Plan vocalist Greg Puciato taking musical leadership and ripping tasteful guitar solos all over the place. Meanwhile, the triple vocal attack of Puciato, Mastodon’s Troy Sanders and living metal legend Max Cavalera reaches a thrilling apex on the anthemic “Dream Gone Bad.”J. Bennett