This part of character creation is currently under heavy revision, due to our decision to switch game systems for the moment. Simply put, Step three will be the step where you choose your characters abilities, powers, skills and all of that fun stuff.
In the past we’ve played with the idea of having Aliens be a solid stat block with the option to switch out powers or skills from a locked short list, while human characters have the broader range of choices to make. It would be very similar to the difference of choosing a fighter in a video game and making a multi-class table top character. However, with this page standing as a testament to this; nothing is set in stone yet and we’re still debating the issue internally.
Final design choices aside, this page will still probably have to do with the customization aspect of character creation, before you would move onto the final step: Equipment!