Civ 4 BtS had a healthy number of military units to geek around with. However, the game could need a few more:
I miss the regular Flak unit from Civ 3. SAMs are a relatively recent invention, and there should be some kind of basic air defence before that.
More types of aircrafts (compare Hearts of Iron 2):
* Strategic bombers
* Tactical bombers
* Naval bombers
* Transport plane
* Divebomber
* Interceptor
* Fighter
With the new tactical battlefield, a mountaineer-unit would fit well.
I miss the regular Flak unit from Civ 3. SAMs are a relatively recent invention, and there should be some kind of basic air defence before that.
More types of aircrafts (compare Hearts of Iron 2):
* Strategic bombers
* Tactical bombers
* Naval bombers
* Transport plane
* Divebomber
* Interceptor
* Fighter
With the new tactical battlefield, a mountaineer-unit would fit well.