The game itself has a great soundtrack - pretty much like those futuristic war movies made nowadays. This adds to the suspense and thrill while attacking your enemy's core base. Sound effects are also great. Selecting one of your units results in the response of a radio confirmation, as well as contact for alerts, and verification of a finished build or an order being carried out. True 3D sound can be heard while controlling your vehicle.
Weapons too sound realistic, as well as their ricochets on rocks or other vehicles.
Before, and after missions, the video sequences have an excellent voice-over describing what has happened, and what you're meant to do next. You also get realistic commands and signals from your base stuck somewhere in the universe. Sound is full-proof, with no defects to be heard at any time. The game Gameplay and control - most important in a game like this. A quick reference is really helpful and an easy way to make those quick actions and decisions.