It’s a do or die situation.
Rock Anthem for Saving the World, from Halo.
The world knows I love Motörhead, but you’re wrong; the answer is Bolt Thrower.
Why is the answer Bolt Thrower? Because every single one of their songs is about war and soldiers and weapons and killing and death and destruction, and because the songs all sound like war and death and destruction.
No Guts, No Glory
Killchain
Mercenary
At First Light
Last Stand of Humanity
Queensryche - Surgical Strike.
Underdog:
System of a Down - B.Y.O.B.
AC/DC - This Means War
AC/DC - Thunderstruck
The Black Angels - Young Men Dead
The Boondock Saints - Pipes
Robert Duncan - Gunfight Epiphany
I posted this on my youtube channel a few weeks ago. Out of all Queensrych’s songs this one hits it on the head. A Theme Song for Monarch and MK Ultra Super Soldiers - YouTube
I couldn’t agree more! 
How about The ballad of Rodger Young ? (Rodger Young being the name of the dropship in Heinlein’s Starship Troopers)