How do you join a Lego universe faction on free play?

first time you go to nimbus station, talk to the nimbus recruiter, then complete the tasks that the people at the faction areas (not the faction vendors) then when your done with all of that, talk to the recruiter again, then pick your faction! then talk to the recruiter at the faction area that is your NEW faction then pick your class!

(i recommend paradox assasin)