first of all i have to say this is working great imo
the behaviour is just as i expect it to be, monsters wander and if you let them be they start heading toward your cities
very cool
the only problem is city militia, as for now i never cared about defense, never built a single unit and what attacked me was always much much weaker than what my autodefense was (normal diff i think)
so imo wandering monsters need to stack more b4 attacking OR city defenses should be more tied to some combat research
its a bit too easy to have a good defense totally free withouht any effort, at least make it happen only if you research something
also to note that since now we have militia archers the defenses are much much stronger
its cool imo, defenses HAVE TO BE archers, i like it, but since they are much stronger they should cost a bit of something
