I know nothing about these guys or any thing realy about the move I didnt want spoilers in this you can read about the first order here if u want http://starwars.wikia.com/wiki/First_Order

things I do know that is not spoilers flame troopers are like Pylo in TF2 snow troopers are the same as ep: 5 storm troopers are the same heavy gunners probably use stronger wepons tie pilots will probly do the same captain Phasma (pronouced plasma) is SHINY (maybe u could get that shiny papers that looks like tin foil)

Good Luck with this design and May the force be with you

PS No spoilers in comments plz