The lineup has been revealed for next year’s “Hell’s Heroes IV” festival. That event will take place at the White Oak Music Hall in Houston, TX on April 22-23 and it will feature the following: Dark Angel, Candlemass, Riot V, Cirith Ungol, Eternal Champion, Satan, Whiplash, Slough Feg, Medieval Steel, Enforcer, Night Demon, High Spirits,…