I remember someone talking about in the ironman mode or whatever it's called that everything you could possibly do is pre-determined. So you have situations where you are going to shoot a guy 4 times with a 94% chance to hit him and you miss every shot.

I mean, it's predetermined in the same way every other 'random' sequence generated by a computer is. There's no such thing as a true random number generator (at least not on a home PC). Everything's just based on an algorithm that spits out a number, which will give an approximately random distribution.

Many generators take the computer's clock into account as well as the previous number. The only thing that the ironman mode you're talking about does is disable the clock input to the random number generator, so the numbers it outputs are always based on the previous number alone. So yeah, it will always spit out the same sequence of numbers if you reload the save.

You can see this in practice if you have a TI calculator. If you set the random seed to some arbitrary number, it will always spit out the same sequence of random numbers.

oh yea, the seed is generated at the start of the level and if you take the exact same moves you'll get the exact same results.

It's why "Save Scum" doesn't mean shit here for the most part.

There's no reason to assume that a true Artificial Intelligence would have any semblence of humanity. Most of humanity's quirks (violence, ego, self preservation) come as a part of its evolution. Such traits wouldn't necessarily be present in an A.I.. We might even be able to pick and choose such things.
But really, there's no need for human level AI for most tasks. Anything a Human can do, a much stupider robot can do.
We wouldn't need sapience for lifting crates around a warehouse.

They come as conclusion to what's best for self-preservance, which is part of logical process. You're being extremely foolish to believe we will be able to understand AI of more sapient levels than simple drones. There is nothing to suggest we would.