Per Making Star Wars, Finn’s objective this time around is to infiltrate a First Order Super Star Destroyer, which is designed a little differently than its original trilogy counterpart.
Making Star Wars includes a drawing of what Finn could look like, decked out in all-black attire.
This is where Finn, the First Order stormtrooper turned Resistance hero, comes in.
This requires Finn to go undercover wearing a First Order officer’s uniform while on-board.