Did you wrote the book, Guns of Navarrone and it's sequel?
The team always relied on the help of the local "resistence"...
Since it's not available for them it would be quite hard to accomplish their goal.
Time is working against them...
Missing imperial personell will sting a lot of persons eye sooner or later.
It's a planet sized space station not a 4 square kilometer island.
It houses thousands of stormtroopers, high ranking officers and a Sith Lord.
In order to escape they have to trick or kill flight and hangar control members.
Disable all hangar doors to make sure no TIEs are going after them.
Disable tractor beams.
Disable surface weaponry as well.
Achieve that Vader is not aware of the situation.
Too much...but there's always a slight chance.
