Enable Macedonian gastraphetēs (crossbowmen) at the siege workshop.
Patch by: Nescio
Accepted by: borg-, wraitii
Differential Revision: https://code.wildfiregames.com/D2901
Train Champion Infantry Crossbowmen
This is only correct for civs that have those, for all other civs this is weird.
The point is those that have the unit in question (i.e. mace) can train it at any arsenal, including those captured from other civilizations.