This is on plain 4 CD KOTOR 2 with the 1.01b patch and just the TSLRCM 1.7 + 1.7 fix.
I get to the Ravager and take the lift up to the bridge, but the first door you come to just says "Locked" when you try to open it--there are no other options. Something's supposed to trigger being able to open that door, no? :-)
Prior to going there, I set the three charges that I could, and found the missile bay, talked to Colonel Tobin, had Visas do her thing in her chamber, but never saw the cutscene between Mandalore and Visas as described on this page.
I'm pretty sure I've been everywhere on the Ravager and killed all the Sith onboard with the exception of the bridge (for obvious reasons). Is this a bug? If not, I'll figure out how to deal with it. :-)