>>4520654>>Liquid Ocelot is still on the loose, Vamp is still alive, Solid Snake goes off to seek Olga's kid and nobody still knows who The Patriots are despite half the story revolving around them>you have to be deluded to think it didn't deliberately left its loose ends open for a sequel.
If you accept that everything that happened was a VR simulation, as it should be, none of those cliffhangers were real.
Since you brought up Olga, and you seem to think those events were real and not a ruse, let me ask you something:
How was she able to put the cyborg exoskeleton on and off so quickly and how come it made her so much taller when it was on?
More specifically, toward the end, when Raiden is in the torture chamber, Olga is in her army outfit and punches Raiden before exiting the room. But I'll remind you that moments before this, she was wearing the exoskeleton and aided Snake & Otacon in capturing Raiden to infiltrate the Arsenal Gear more easily.
Moreover, I recall Snake stating that they have secured Olga's baby anyhow. It's extremely convenient, much like Rose appearing out of nowhere at the end.
And finally, Ocelot spoke with Liquid's voice, despite this not being the case in MGS4 and it was never explained how his voice changed when Liquid "took over his mind." This was just one more element to MGS2's plot to fuck with your head. Even Snake seemingly can't hear Liquid's voice coming out of Ocelot when he first "hears" it in the Tanker chapter. If you rewatch the cutscenes, it takes him a while to realize Ocelot's personality's changed all of a sudden, rather than immediately recognizing Liquid's voice.
Anyway, Liquid Ocelot is just one more part of the simulation; Ocelot actually fled the Shadow Moses incident before it was over, so he escapes during the Big Shell incident too. Everything happening in MGS2 was deliberately copying the events of MGS1, the only difference is, we get to see him flee in the RAY unit and Snake fucking swims after it, lol.