Depending on where you vacation, the last thing you might expect from an album by a band named after a Finnish lake made infamous by a multiple homicide and titled Halo of Blood would be for it to be fun. Strangely enough, though, that's exactly the feeling that comes through on Children of Bodom's eighth album, which finds the Finnish band returning to deliver another dose of dazzlingly technical melodic death metal. Sure, the album is filled with lots of dark moments and macabre imagery, but listening to it is a bit like watching a fighter plane demo, which is to say it's loud, thrilling, and when enjoyed properly, it's likely to result in some hearing loss. Filled with big riffs and high flying solos, Halo of Blood is an album that's hard not to headbang along to…