You're throwing AMG at me? AMG??? Who gives a shit what AMG has to say for itself?
HVP doesn't have a storyline, have you even read the damn lyrics? Since when did one song one that album (or any other bolt thrower album) connect in a linear or progressive fashion to any other? They don't. There isn't a storyline, only a theme, and a themed album is not a concept album. It's (duh) a themed album. Since when did making an album of war anthems become a concept?? Oh hell, you may as well call Linkin Park's Hybrid Theory a concept album because it's themed around emotional pains. Or any one of Deicide's albums because all the songs are anti-christian.