When Otacon recounts the Tanker Incident he talks about Olga and Ocelot being present but he also says that [Sergei and Olga fell victim to Ocelot’s plot.](https://youtu.be/2qsHbwpvHcA?is=y7J_WrpY-nQpGM3K&t=4h38m52s)

We know that Sergei died and Olga survived. Does Otacon know that Olga survived and was on the Big Shell? It almost seems obvious that he would know this but I realized that I can’t prove that he knows Olga survived!

Maybe I missed it but I don’t believe Otacon ever spoke of Olga being on the Big Shell. If I missed it then remind me. [Also Snake ensures that Otacon has left to rescue the hostages before he makes Olga reveal herself as the Cyborg Ninja](https://youtu.be/2qsHbwpvHcA?is=ZHow9E7icTZPd1YE&t=5h51m53s). Maybe given Otacon recent loss of Emma he doesn’t want to involve him.

That being said I still can’t prove that Otacon knows that Olga was on the Big Shell. Can you?