Question: MGS2 plot question

[BigBrother]

Hmmm. I always thought Pliskin was the forth Snake? (Liquidous). That's why when you call him on the codec he shouts 'Liquid' and goes back to sleep. But he can't be Liquid because Liquid is possessing Ocelot. I hope they don't do something really dumb like saying Ocelot is pretending to be Liquid through nanomachines, because that would be really, really dumb. Kojima would never do that though!