I can't believe how many people commenting on that video are getting butthurt over the guitars being tuned down to D. Anthrax, Forbidden, Metallica, Exodus, Testament, Kreator, Sodom and Destruction all tune to D too, some of them for over ten years now.
Edit: Sorry, Metallica might be in E-flat these days? My point stands though.
Brocas Helm/Hatchet/Exmortus/Midnight Chaser 11/22
High on Fire/Kvelertak 12/12
Exodus/Nails/Hellfire (???) 12/20
Neurosis/Bl'ast!/YOB (???) 12/29