To say that the OST we got from Bill Brown & Mikael Sandgren is a masterpiece, would be a grave understatement. The soundtrack for every faction is masterfully crafted to give meaningful undertones of every faction's aspirations, and goals, while maintaining the integrity which compliments the nature of the factions themselves. It compliments very nicely into the campaigns, signalling distress in dire situations where they were due in cutscenes, and in other times with the USA, giving the tone of ease and duty, complimenting the factions tone of "just another job in the business". Absolutely masterful. 10/10