It occurred to me that the 1 UPT combat in Civ5 is worse than it needs to be. 1 UPT could be interesting if ranged units could shoot farther, if defensive units lasted longer, and if mobile units had more movement... and of course if the map was bigger.
But that would be interesting in a tactical war game, which Civ has never been.
There are many sports games where you actually control the player... like you press a button to swing the bat and try to hit the ball in a baseball game.
Then there are games where you simply manage a team, your choices as a manager help determine the outcome of the game, you don't directly control the players.
In my opinion, if you're going to add tactical battles to your game, you'd better go full-out and do them very well. I still play Rome Total War, the first one, because it's still fun. The battles are fun. If Civ5 went completely all-out with tactical battles to the point that they were really well done, who knows what I'd think of it, it would certainly be a complete change for the series, but I may have liked it. The problem is that they dabbled in tactical warfare and didn't do it justice. Keep in mind that no other 4x game attempts to dabble in tactical warfare, and there's a good reason for it, in a strategy game it is just unnecessary.
I'd rather play a game with very simple combat but a rich strategic atmosphere, than a game with poorly implemented tactical combat.
I can honestly say I find combat in Civ5 to be a wash with Civ4. It's no better, no worse, and they nearly broke the game (many have argued they did indeed break the game) simply to switch to 1 UPT. The whole thing was unnecessary... and they committed to it without really putting in the effort to make it work.
All that said, I'm actually enjoying this game. Keep in mind I've clocked in well over a thousand hours in Civ4 and I'm not even at 50 in Civ5, so I have no idea if I'll play this game as much as the last one, but it's not nearly as bad as some (like Sulla) made it out to be. Perhaps that's the benefit of not picking it up until it's had 2 expansions and many patches
I did buy everything on sale and I do feel I got my money's worth. I hope they learn from the very mixed reviews and do a better job launching Civ 6