This is the music from the opening cinematic of the Battletech video game. The cinematic is wonderful, thanks in no small part to this music. Highly recommend watching it
The game itself is great too if you like tabletop games. It is about as close to a 1:1 port of tabletop rules as you're realistically going to see made. The mods available really open it up past the base experience as well, but I wouldn't touch them til you've finished at least one playthrough of the base game first.