Right now I am messing around with Ultimate General: Civil War, the sequel to UG: Gettysburg. It's really great so far, I like many of the new gameplay mechanics, such as the addition of rudimentary battlefield logistics requirements, customizable/upgradeable weapon loadouts, unit veterancy, and recovering/looting fallen weapons. The campaign mode is pretty challenging in contrast to UG: Gettysburg, though I'm not yet sure if this due to smarter enemy AI or the AI's huge numerical superiority.
There are a few annoying flaws though that I think are steps backwards from UG: Gettysburg. The pathfinding AI for brigades ordered to fall back is completely fucked, it was perfect in Gettysburg, but now they seem to purposely go out of their way to run into enemy fire or expose flanks. Also the mission objectives feel really ambiguous, like in defensive missions with multiple fallback points, they don't make it clear which point is the last line of defense, and they often give you objective timers but don't tell you what they mean.
So in my first full-scale set-piece battle defending the Confederate left flank at First Manassas/Bull Run, I ended up defending every river crossing and hill to the last man because there was no indication of which objectives could be overrun as part of the first line of resistance and which absolutely had to be held as the last line of defense. Since I couldn't safely give up a single objective, I ultimately sacrificed my entire "personal" division (not counting temporarily detached/transferred units that you don't get to keep) of two 800 man infantry brigades, a 7 gun battery, and a quarter of my 250 horse cavalry squadron. Kind of defeats the whole point of unit veterancy if I have to expend entire brigades to the last man to hold back the Union AI onslaught, but I'll have to see how the rest of the campaign holds up in comparison. On the plus side, I slaughtered a lot of Union cavalry vedettes and looted their badass Colt revolver carbines, which now equip one of my newly raised cavalry squads.
Here is Tom Preston, my divisional commander now without a division.
He looks pretty traumatized by the pyrrhic victory at First Manassas. Or maybe he's just horrified that 150 years later, Google search results for his name will list neither battle honors nor commendations, only inflation porn.