Board Thread:Lords of Shadow 2/@comment-108.173.127.111-20140309222937/@comment-24735474-20140503051720

Zobek never exactly noticed the difference between Alucard and the real Lieutenant either, nor was he able to know about Al's plan even though Alucard knew about it the entire time. Anyway there's also the dialogue right after the first encounter with the dishonored vampires. Trevor grabs the wolf medallion, hands it to Gabriel then says "use it and I will come." The White Wolf (revealed to be Alucard in the concept art) shows up every time afterwards.

In short, Alucard works in mysterious ways...