He's most notable for directing and producing the Wing Commander series, which was probably the
most critically acclaimed space combat series of it's time, though that was over 15 years ago. I regularly check up on Star Citizen's development (which CIG is very transparent about) and feel rather secure in my opinion about it.
And yes I remember the "new" Duke Nukem, but I'm more of a Serious Sam fan.
(and sheesh, can somebody add the ability to put pics in spoilers?)