Mick Gordon and Tex Perkins track from Wolfenstein: The Old Blood, called The Partisan. Fantastic end piece to the game.

https://mickgordon.bandcamp.com/album/the-partisan-feat-tex-perkins

Later found out it's steeped in history as it's a cover/adaptation of a 1943 anti-fascist song written in French by Russian-born Anna Marly. https://en.wikipedia.org/wiki/Anna_Marly