I stole like all of these from youtube :3

Battlefield 1 OST - They Shall Not Pass End of Round theme extended 2

Hearts of Iron IV - Götterdämmerung (Original Game Soundtrack)

Twilight Of The Gods

Oppressive Gloom the music of legends of ghosts 

Oppressive Gloom - Kevin MacLeod

Like this music, find more from Kevin McLeod here
https://twitter.com/kmacleod
http://incompetech.com/

Kevin MacLeod ~ The Descent

You want battle music? You can't HANDLE the battle music! Meh. You probably can. As battle music goes, this is pretty tame - no blaring trumpets or hyperactive xylophones... Why? Dialog! You can actually talk over this battle music! Feel free to punctuate with your own stabs after you cut around your dialog. Or don't. You can use this as a loop on your Twitch stream for anything... battle-y. That rough spiccato bass line is off the hook! (Do people still say "off the hook"? I might be a few years late on that.) 

Clash Defiant

All This - Kevin MacLeod (Incompetech.com)

Uncertainty

The Great Patriotic War

Communist America

Five Armies

Some sort of action, suspense, horror, dark brooding thing.

ISRC: USUAN1300025

Kevin MacLeod ~ The Descent

Michael Hawk