My question was if you could play two parts. So no it didn't.
I have seen versions where predators and humans fight along side too (as mentioned in my previous post), and I didn't like them (as mentioned in the previous post).
A hunting planet is cool. But the downside is that it couldn't really have much human settings beyond tree-houses and stuff. I personally like when fights are being fought on human ground like laboratories, abandoned buildings, human space stations/colonies and stuff.
And if some one chooses a human character not equip with weapons or mad killing skills like I have personally considered, they wouldn't have as much to do in an alien setting (alien as in unknown). On their home-field I believe humans have more options, and environments can change more.