Nope. No one has ever done it as far as I know.
But we've flirted with it: Black Crust, Blackened Metalcore/Hardcore, Blackened Grindcore, Blackened Screamo. Lots of those. But nothing explicitly War Metal focused.
This album is probably closest:
open.spotify.com/album/3rBZv…
Infant Island – Obsidian Wreath (2024)
👉 amzn.to/4jbAmoV
18,52€ ⬇️ (LP Yellow Transparent [Oxblood Galaxy] Vinyl, Black Metal, Blackgaze, Grindcore, Hardcore, Post-Metal, Post Rock, Shoegaze)
🇪🇸 Vendido por Amazon ES
#️⃣ En Stock
This past weekend I was looking up Japanese metal bands in between martial arts practice & found many interesting bands like these 2 & your post just dumped so much more in my lap.🤘🇯🇵🔥
KANDARIVAS ~ experimental grindcore Ayakashi Kagura ~ Brutal Death Metal with Folk Influences