Just took down 3-1 with an S-rank, but I'm not sure how deserved it was.
I *like* the risk-reward of bringing your powerful CO into battle with you, but sometimes it's very difficult to calculate if he or she can be killed in a single, fuck-everything-else turn by the enemy. The enemy AI brought Ragna fairly close in, and I managed to do an *exact* 100% of damage (if I'd been one % short, it wouldn't have worked) by suddenly surrounding her by using a wagon that happened to be in the right position. I didn't plan the previous turn to go all-in; I didn't think Ragna would stick around. If I were playing a real opponent, I'd be like, hah! Foolish mistake! But against an AI, it felt like it made the overall design of the battlefield and mission feel like it didn't matter.
It's a minor complaint, though, and I'm happy to snag the S-rank. I don't seem to have as much trouble with QoL stuff as other users here, and I'm still definitely loving it. Animations ALL off, however. As beautiful as they are, the game is much too slow with them on.