Sounds like XCOM2 is pretty brutal from you what Bluers are saying. I'm almost too scared to try once my physical copy arrives. I imagine though a handful of people will figure out the best strategies even on higher difficulties with Ironman. Over the weekend I was watching some vids from the best EU/EW player that beat the game on the highest difficulty, with ironman, and managed to do it without anyone dying. Some of it can be luck wit hit percentages, but there are definitely best methods to the madness of these games. Personally I think Xenonauts is delightfully more difficult than XCOM EU/EW, being that it is far more like the original XCOM.