I would love to see Firaxis team up with WotC and make a 5e game using this engine and turn based style.
Well yep, this would be perhaps the best thing to ever happen.
After having a fairly easy time on normal, I kicked into a Commander/Ironman campaign. First mission, I somehow missed a revealed square and fucked up the very first ambush - an omen of things to come. Second mission, VIP rescue, starts off fine. While moving into position to get the dude out of the van, I activate two pods of 1 sectoid/1 trooper who were hiding at either end of the van. No problem because I had a successful hack that disoriented them for 2 turns, and one of the sectoids just stood in no cover in the middle of the street. I had good position on them, they were fucked.
Then 'that's XCOM, baby' kicked in, I ended up missing a string 6 or 7 of 70%+ shots, long story short, one guy got killed, two guys captured because mind control/panic and I couldn't get them out in time, and the VIP barely makes it to the evac point, and he only made it because of a bunch of missed overwatch shots on his final mad dash to the chopper.
I've been playing XCOM for over 20 years and I am not sure I've ever had such a sustained run of shitty luck, heh.