Wonder if it's to do with some underlying engine changes and the way things are calculated rather than any malice towards players. I've noticed a couple of achievements have popped up the second I hit the end turn button but before we see it play out. I just got the kill a sectopod the same turn you find it achivement pop up before I knew there was a sectopod out there, I hit end turn, it moved into range and the overwatch shots piled up and killed it, ditto the kill 500 aliens one.
Yeah, ive had a few event spoilers like that. The most noticeable was for 'Cause an enemy to die in a vehicle explosion', i had 3-4 guys on overwatch, up pops the achievement, and then about 30+ seconds later after everyone has missed the shot, the car they were hiding behind explodes and kills them.
Also, in terms of events being pre-determined and not malice, im calling BS on that one. I regularly tab out of the game to respond to messages, i have 3 screens so the game stays put in the middle and i'll respond on one of the side screens. I have this nasty habit of going back to the game by clicking on the screen, and sending them off on an unwanted trek across the scene. When i go back to the start of my go and do a hack, i've had the mech which previously went to about 80% across, with only around 12-15% needed to pass/stun, always fail on every single reload, it does about 5% and says FU.
I also think the mission i did early hours this morning must have been bugged out. It was a VIP mission, i managed to take down the first small group on my 2nd turn, which was right where the exit point was, took out another 3 on the next turn without really going anywhere other than revealing them, sent 1 person to the VIP who was pretty close which activated a group quite far away, and with the 4th turn i'd sniped 2 of them from absolutely stupid distances (using squad view perk), and it was at that point where i realised each turn, i'd seen none of them move. They never ran forward when revealed, didnt move on the turn.
It must have happened on the previous map though, because with about 3 left to kill i noticed i wasnt seeing their action, it was just a long 'aliens moving' screen, no screen panning around etc. There had been some destruction, which made me think that one had missed a shot, but it was probably just the building destruction. So i dont know (cos ive not gone back in yet) if thats my whole save knackered or if it was just a flawed exe issue and loading it up will go back to normal. I'd been so impressed that my solders were nailing shots (they were mostly 90+% sniper shots though) as well.
edit - just loaded the previous mission (where i think it started) and skipped my turn and they moved straight away, so fortunately its was just in that particular running instance. Although im probably going to be screwed soon anyway, simply wasnt paying enough attention to the checklist and im on a countdown i doubt i can come back from.