Killswitch Engage have surprise released a new EP titled “Atonement II B-Sides For Charity.“ The effort comes with six tracks including: “To The Great Beyond,” “Hollow Convictions,” “Killing Of Leviathan,” “No Devotion,” “I Feel Alive Again,” and “Prophets Of Treason.” Fans can purchase the effort on Bandcamp with 100% of the proceeds set to go…