Krio the world isn't so black and white, I think you've misunderstood what makes RPG's so great. There is no main character, Nobody is the big bad wolf, Nobody is Superman and sure as fuck nobody is Lois Lane. If there was then our RPG's would be just as boring as your average popcorn flick. Mixing up the races was to force you to write for a different angle, Rather than being the sly and sneaky alien who slowly stalks its pretty you're the Marine Medic who just wants to help people. Rather than being the tall and agile hunter you're a mindless death machine that hunts out of instinct.
The dullest thing in the world is seeing everyone try to be the Anti-hero. It's actually more interesting to a reader to see something that could be real. Something with flaws and depth, But yet is so alien to us that it's interesting. Something so human, And yet so inhuman at the same time. It's very hard to do, But when you do it's a feast to the mind.
I'm no authority on RPG's or writing. But please just write something people would want to read, Not the cool edge character you want people to think you are.