Ok! i at least think he was a rebel sympathizer. I mean lets look at this carefully. 1st-he rejects capt.peitte's suggestion that the fragmented message from the probe droid was a possible lead, -then he tries to divert the possibilty that hoth is in fact the location of the rebel base <Vader-"Thats it the rebels are there!" Ozzel"My lord there are so many uncharted settlement, it could be smugglers It..."(Now if it were me I'd of said "Ok lord Vader what ever you say, if it's the base then you have the force you must know.") Then he come out of light speed to close and to soon (not to contact the rebels, but I suggest to physically warn them, to let them know ok We are here, I tried to divert these guy but it didn't work so get ready.) Yes it's a huge speculation but I think it might have some merrit. What do you say? comments speculations.