My son and his group finished their extension to Company of Heroes, called Europe in Ruins. If you are a fan of miltary sims you might want to look it over. It is available on Steam

https://store.steampowered.com/app/664260/Company_of_Heroes_Europe_in_Ruins/

And I think you’ll really like the music in this demo video.

http://www.europeinruins.com/