3. Impress and Recruit. Only the faction that controls a region will
be permitted to impress and recruit in that region. This will be a
big incentive to control regions, even if taxation benefits are low.
It will also drive people to build castles in highly populated
regions, another plus.
This is too tough. If you have a rule like this, then newplayers
are going to find it impossible to start up. Maybe make it
impossible to impress (the locals pay their taxes to avoid such
things), but you have to be able to recruit. How else do
shop keepers get assistants?