In my last game I get sabotaged to bits by 4 AI who just love to destroy my improvements. I think I am not exaggerating when I say that 1 pasture has been destroyed over 8-10 times. It is just incredible. I have tried to put a unit on it only to see another pasture getting destroyed. I have put spies everywhere to see if that would help. My cities all have jails/courthouses/security bureaus and the cities that get hit have spies in them.
As far as I know the best ways to do something about this are:
1) Perform counterespionage missions, but against 4 AI's that is hard
2) Security Bureaus (but I already have them and somehow a spy is never caught)
3) Place a unit on the resource (how much does this help?)
4) Place a spy on the resource (does this work?)
5) Outespionage the AI by generating more espionage points (but again, against 4 AI's that is hard)
So what am I missing? Can I use my vasal for espionage missions? Should I concentrate on 1 AI more?
As far as I know the best ways to do something about this are:
1) Perform counterespionage missions, but against 4 AI's that is hard
2) Security Bureaus (but I already have them and somehow a spy is never caught)
3) Place a unit on the resource (how much does this help?)
4) Place a spy on the resource (does this work?)
5) Outespionage the AI by generating more espionage points (but again, against 4 AI's that is hard)
So what am I missing? Can I use my vasal for espionage missions? Should I concentrate on 1 AI more?