In a move which defies Microsoft's insistence to keep Halo 2's plot and details a secret, copies of the game have already been sold, for as much as USD 265. Although Tuesday November 9 is the official launch date for the highly anticipated sequel, copies have found their way to the Internet auction site Ebay. The most profitable sale was one completed on Thursday which saw an in-hand copy of the USD 55 special edition Halo 2, including special packaging and a bonus DVD, reach a staggering USD 2…