I know that no firefight is meant to happen, but speculating is always all in good fun, as long as nobody takes it too seriously.

Anyways, locking out the bridge will do no good. FourSev will have the entire ship systems at his fingertips there (trust me, he can break any imperial encryption on those terminals) and even if you somehow disable the terminals, FourSev can shoot his way out. He has a blaster cannon mounted on his shoulder. 

Also, I feel the need to clarify that FourSev has no skin to burn. He's six feet seven inches of the best bionics the empire has in store Shooting at him with anything less than a proper blaster rifle (the big long ones that fire on semi-auto) will just scrape armor at most. He's like an already armored combat droid [i]WEARING[/i] heavy stormtrooper armor. Sep wasn't exaggerating when he said Dark Troopers are tanks.