I'm actually having a blast with the first Battlefront. I tried single-player Instant Action and jumped right into games, but there's something I'm confused about.

When choosing a map, say Mos Eisley in Galactic Conquest (I think that's it, it's the second option), I can't find a way to choose to play as rebels instead of Empire. Am I missing something obvious?

When you're on the class selection screen, at the top you have the holograms of each faction.

Galactic Conquest not a Instant Action. You cant choose side.

Yup, that was it. I didn't even realize those holograms were selectable. Thank you.