This is yet another patch to differentiate athen civilization.
I find it interesting to have at least something special for a unit of each civilization.
The purpose of the patch is to make the Athenian hoplite a fourth level, becoming a champion.
Idea started by @Nescio https://code.wildfiregames.com/D3688
With D3688 it can be a great. The idea is the same, making hoplites more used.