Well in that case ( as I understand from link you post) you should rather focus on building sites and "nomadic life" instead of trying take control over the town. There is no connection beatwen Mason Guild (historically) and Assassins. It is what You "invented in game". What I am talking about is "Hashshishin Order" which (historically) performed assassination for political/religious reasons.
Assassins target was to control not to kill. They did it in few steps:
1.Take control of castle/fortress which will be easy to defend with few people and hard to access (usually in high mountins) - they always get control over castles by deception..never by frontal attack
2.They send emissaries and spies to nearest towns to prepere the "underground"
3.They demand from local ruler to pay tribute as well as allowed presence of emissaries in his Town
4.If he refused they usually did something like Sicilian Mafia: head of the cow in your bad in the morning for example (more popular was dagger in bed next to your head)
5.If he still refused then assassin would be send
If assassination was successful Assassins start to "work on" the next one in office, on the throne.
This kind of guild I had in mid. I believe is different than Yours. I did not mean to offend anyone and especially You.
Assassins target was to control not to kill. They did it in few steps:
1.Take control of castle/fortress which will be easy to defend with few people and hard to access (usually in high mountins) - they always get control over castles by deception..never by frontal attack
2.They send emissaries and spies to nearest towns to prepere the "underground"
3.They demand from local ruler to pay tribute as well as allowed presence of emissaries in his Town
4.If he refused they usually did something like Sicilian Mafia: head of the cow in your bad in the morning for example (more popular was dagger in bed next to your head)
5.If he still refused then assassin would be send
If assassination was successful Assassins start to "work on" the next one in office, on the throne.
This kind of guild I had in mid. I believe is different than Yours. I did not mean to offend anyone and especially You.