https://www.gamespot.com/articles/far-cry-5-composer-revealed/1100-6453664/

Ubisoft has announced Far Cry 5's composer--and it's a big name in the music world. Dan Romer, whose credits include Beasts of the Southern Wild and Beasts of No Nation, will compose the score for Far Cry 5 and write original songs for the game.

In addition to his work on those movies, Romer produced songs you have definitely heard: "Say Something" by A Great Big World and Shawn Mendes' chart-topper "Treat You Better."