Friday -
(possibly) Zealot Cult
Control the Storm or Xentrix
Death Angel
Metal Church, then most of BongCauldron
Damnation's Hammer
Children of Bodom
Tesseract
First half of Countless Skies, then all of Powerwolf
Sabaton
Grand Magus
Saturday -
The Parallax Method,
Cancer Bats or Odd Crew
Swallow the Sun
Guardians of Time, end of Evil Scarecrow
(possibly) Red Method
Dust Bolt
Helheim
Cradle of Filth
Anthrax
(possibly) first half of Skeletal Damage
Parkway Drive
Taake
Sunday -
(possibly) Harbinger
Witch Tripper
Solitary or Ross the Boss
Wheel
Boss Keloid
Resin
Dee Snider
Queensryche
Bloodred Hourglass, then the rest (majority) of Dimmu Borgir
The Lazys
Scorpions
(possibly - if we don't leave after Scorps) Eluveitie
That's plenty enough for me before fatoring in the other two stages.
