I propose that we make a mod that allowing generals or special heroes to build fort in the factions own provinces. In a style of the TW Empire or Rome.

The reason behind is that the vanilla cities are not enough to blocking the obvious strategic chock points from foreign invaders.

I here share some ideas of possible workaround:

- Customised scripts that adding a new stance that allow a general to set up fortifications and loading a siege battle map.

- Making a herd like unit to all factions that only enable a few fortification related buildings.

- If the engine still kept the old TW Empire build fort script, we could reenbale it in WH.