The Heroes Round Table

Please . Where can I find the Controlled Breach.
On which map is that ?

Hello !
After completing MM8
I located round ball ( I found that in Dwarven City) and now need to find the Controlled Breach something .
I have no idea where that can be ?

Are there any FAQ or some other info about Mod"s gameplay ? P.S. For example I don`t know if it is right to start playing from MM7 , because I have party 40+ in progress in vanilla MM6 it feels strange to play it again. How to fire NPC or ask them to activate their abilities . Things like that ...

do you advice to use community master patch alone or together with rodril fixes parch ?