Dundradal caught a neat mention of the Wing Commander series buried in the historical articles at the Bungie website. Jason Jones reminisces about PC gaming and Wing Commander being popular at the time they founded Bungie.
Yeah, I grew up on the Apple II and then the Mac," says Jason, "I wrote all this C code for PCs though, before I even went to school. This was the heyday of PCs, with Wing Commander and stuff. The PC market was really cutthroat, but the Mac market was all friendly and lame. So it was easier to compete."
The company later went on to hire Wing Commander veteran Dan Orzulak to work on Halo.