A RTS/Third person shooter staged in a alien planet.
There's three factions. Two human and one alien which is unlocked after you finish the two.
The really unique thing about this game is that you can control any units for you to move and fire with a fair amount of unit diversity. Overall it's a really good game and worth the find.
Here's the wiki.
And here's the Amazon link. I'd buy it myself but I'm in Australia so freight charge and the ability to ship over here is pretty much not worth it at all.