No he didn't tell him he in some way led him to the corpse.
Viz said otherwise
Edit :And yes he knows if anything Kabuto has been shown to be pretty smart
Then it would mean also Orochimaru knows that, but he don't U_U
The translations we have dont make it clear whether or not BZ brought* Kabuto to Madara's corpse or just led him to figure out where it was.
Above at manga scan he says , I guided him to use the corpse as a bargaining chip . That was all my doing.
Hey may know BZ wasn't loyal to Obito since he knew Obito wasn't Madara
I guided him to use the corpse as a bargaining chip . That was all my doing.
You can guide someone to do something without walking up to them and telling them to do it.