>>2220816
>>2220816
>because expansions changed the way how those things work again
Not "expansionS", expansion. They changed lethal bombardment and aviation states only in Conquests; Play the World was basically the same as Civ 3.

>Getting archers changes how the game plays
Archers are basic foot attackers, what's special of them? Unless you mean the defensive bombardment which was added only in Conquests.

>>2220825
Artillery in Civ 3 unlike Civ 4 doesn't suicide itself on the enemy units. Instead it can destroy tile improvements or barrage enemy units (but not kill them which is important). Plus, in vanilla and PtW when bombarding a city it could destroy a city improvement instead of hitting a unit. Conquests changed it to always hitting units which is too strong.

Planes are basically what they are in Civ 4 but they couldn't actually kill units; given their range and mobility it was a good balance. Conquests absolutely unnecessarily pumped their stats AND on top of that gave them lethal bombardment meaning they could destroy any unit by itself without any land army which is ridiculously overpowered.

If you play Conquests, it may be recommended to use this https://forums.civfanatics.com/threads/mod-patch-suggestion-c3c-version.75580/ mod. It tweaks with some stats, notably removing lethal land bombardment from bombers but doesn't involve any drastic changes.

Note that if you install and launch the mod from the scenario folder as in the instruction, the city view will become unavailable (it's how it is with any scenario). I'd suggest backing up Conquests.biq and Civilopedia.txt files, renaming the mod file patch_suggestion.biq to conquests.biq, and overriding original file. That will allow you to keep the city view screen, and you could just use back up files to get back to the original game.