Ahriman
Tyrant
Sure, but there's no gameplay reason to make grassland forest as bad as tundra forest either, and there are good reasons not to.It's not really relevant to how the game plays.
Tundra should always be worse than grassland.
Why? These are both decent terrain types.It says yes if Grassland+Forest is the same as Plains+Forest
And why should these two be the same?
What was wrong with how they worked in Civ4?