VondeVon said:
I suppose it's possible that the second time around I slapped the sniper on Overwatch before taking the shot... but then why, when I reloaded and took the shot again without touching the sniper, did the first guy continue to miss...? Argh!
Let's say you went through 4 actions in a turn, and got a 5, a 35, a 91, and a 72.
Originally, the 5 went to the sniper. He missed.
After your reload, you put the sniper on overwatch. Then, you take a shot with your support. He calls the same 5 the sniper would have. It's a miss.
In order to properly save scum and cheat the result, you'd have to have someone eat the bad result, then return to your highest chance soldier and have him shoot on the higher result.
Try doing a Groundhog Day with a turn. Go through the actions, then reload, and reload, and reload, and chance the actions very slightly each time. You'll see what I mean. You are correct that I am going to tell you that you do not have the one copy of XCOM that behaves differently than everyone else's. It's just a question of understanding how the random seed works.
My ultimate recommendation, though, is to not save scum. XCOM is most rewarding when you play it with the potential for failure, and trying to juke the random seed is annoying and time consuming. Just accept your miss and live with the consequences.