How about?

Security

The base is being operated in a most unprofessional manner. The listening posts one job to stay hidden while listening in on the Admiral has made the Guards inattentive, LT Sarev is a pushover with his soldiers. just some of the Data that can be found by the infiltrators searching the Offices.

Entry

I had the PCs be working with other teams one would hit the outside com line and would be the diversion for the rebels to sneak into the "car port". With a difficulty check. Other rebel/resistance teams ensuring the patrol that left to investigate the com line wouldn't be returning.

Infiltration

The camera/monitor security guys are playing a game of sabbac for Obi's sake when the Rebel Infiltrators walk in stunning them, most of the camera or all of them may be offline, most of the base is so new that most of the security isn't fully operational yet and these matter are complicated as the GM permits further when the com line and main power generator are sabotaged by your rebels.

Giant Plot Hole

Later when the base is fully operational they can overhear the Admirals report that Dardano has moving on the listening outpost.