@macarroiz
You included me too, but I totally agree with you. I used 'careful' in a quote, but I argued against considering MC as careful. Not to mention that I totally agree that he should be making plans that include changing the plot, as long as he consider what may happen after he makes those changes.
@Amplify too
No one has claimed that the plot of the game influences the plot of this story.
@Simpleton said that it's a possibility that right now the MC can't rule out. This given MC current knowledge. He said MC was wise for considering the possibility, he didn't claim that the game actually influences the world. I just replied to him, and I didn't change that premise. I used an if. If that was the case then MC strategy wouldn't be better than mine, so adding that scenario can't justify MC's choice. To conclude: that's a straw man, as no one claimed that.
there's an intelligent & free thinking human being involved who can and will adjust their plans accordingly if they smell things going wrong.
People went to war all the time, and it was against "intelligent & free thinking [...]" People are still going to war, companies make commercial wars, countries make economic wars. People fight with abstract war games like chess or go. They are all against humans. It's not a big deal. Even his current situation happens in war all the time. It's like having a good report from a trusted spy about the plans of an enemy. Sometimes the best is to do nothing, sometime it's better to act. Not considering a possibility is just foolish.