I don't know if it's the release of the Liberty with its less-than-clear naming convention, Rebels going to the dark side and getting confused about the difference between the ISD1 and ISD2, or just a string of bad luck on my part; but over the last few weeks I have had FOUR different games, against four different opponents, two on Vassal and two IRL, in which my opponent has shown the wrong variant of either an ISD or a Liberty until the round when it goes to shoot at me.
In Vassal: Both times the opponent grabbed the wrong card. IRL: Both times the opponent had the right ship card showing, but the wrong ship token. In all cases, I allowed the opponent to retcon the list, being friendly games... But I should not have been asked to do so, and I'm about done being forgiving on this.
It may seem like a minor difference to you, but I promise you that if I'm dropping an MC30 where it's going to take a hit from the front arc of your Liberty, I've done the math on its chances of survival, and yes, that one red die difference can very easily be the difference in my approach to addressing your entire fleet. Even more so the ISD, where I'll drop an MC30 in medium range of an ISD1 all day, but a 2 is pretty likely to one-shot it. That's a difference of five dice vs eight!
Please, for the love of god, check your ****, or at least be man enough not to ask your opponent to forgive your lack of attention to detail.
/rant