Was the good guy bad guy thing meant to be a surprise?
I recall this film coming out back in the 90's (when I was young and full of British spunk) and seem to recall that Arnie being the good guy this time was public knowledge, possibly part of the marketing of the film.
Yet the initial set up of scenes with BIIIIG T-800 appearing and getting clothes, and average human looking bloke doing the same and both converging on John, appears to me like there was an idea to surprise the audience with the revelation of the new T-1000.
Its only when the T-800 draws his shotgun and says "get down" to John that we, the audience know he is not here to kill John, or at least that what it seems it should be. Is my memory faulty or was Arnie being the good guy well known?