Kardwill: Funny thing is that a thread whose topic is "all civ games are alike" ends up in complains about things that have been changed in civ 5 ^^ (Although I thought that civ 4 also had the stack limit? Not sure, since I'm more into SF and Fantasy 4X)
And I actually like the no-stack policy. It actually pushes me to do frontlines and to send several axis of invasions instead of just one big push with a stack (or a group of stacks). But I guess it's up to personal tastes.
As for "realism" in Civ, we're talking about the game where stone age warriors with silex-tipped javelins can destroy the battleship and the planes that are bombing them (at least in civ 1-2), where crossing the globe with space-age ships/planes can take several decades, and where a bombing run is at least 2 years long, right? I think the game works better if we assume an healthy dose of abstraction ^^
Those primitives didn't shoot the planes in flight, but avoided the bombing and made a daring raid on the local forward airbase or on the anchored fleet. Those travel times and long flight times are about getting big armies in position with all their logistics, advanced bases, supply lines, or to set up a viable commerce/spying network in the regions crossed (no idea why diplomats are as slow as the others, though. To simulate the fact that setting Long goodwill tour?) This is not a 2 year bombing run, but a 2 year campaign of carpet bombing with multiple missions. One "unit" on the map actually represents a whole corps that will handle a fair area of the battlefront and mixing all the arms you sent to this front (and not just one homogenous infantry regiment)...
Civ games don't comprehend quite a few basic principles of combat. And most are not because of the limitations of being a game, but the limitations of not being bothered to do it!
You could for example, easily code in that a tank is immune to small arms fire, swords and spears, it would not at all be hard to do, but they did not bother, why? Who the hell knows?
Edit: well ok they may say you should not be able to wipe out an enemy who has no anti tank.... but guess what happens to any armed forces in real life that don't have anti tank? Yea, no game balance Gods will save them.
Hmmm actually no.... in WW2 tanks did frequently take casualties fighting forces with no anti tank.... they had mechanical break downs!