There have been a few pieces written on XCOM's randomness. If you are concerned, read this|
Basically, the seed for the random number generator is chosen at the beginning of the scenario, so events are deterministic in relation to that seed. If you want a different outcome, you'll have to take a different action.
Also, just play on Ironman and it is as good as random.
HisDudness 907 posts
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