No, NO, NO! Satellite Internet is terrible and there is no way he'd be gaming on it. From the service calls I've been on that customer's had satellite internet their ping times were all over 500ms, most over 1000ms (1 second), and the downloads were only barely faster than 56k at peak times with uploads that were even less.
I hate having to say this, because I know what it's like to have no other high-speed choice but satellite is easily worse than 56k dial-up due to the companies severely overselling their bandwidth and overloading the satellites. If he can even get ISDN, IDSL, or low speed ADSL they'd all be better. But odds are he lives out in the country too far for DSL and no cable access right?
You can go to DSLReports or a similar website and see how much satellite users dislike being on satellite.