I haven't tested Extra civ addon pack yet with RoM 2.3 so I don't know if it works or not. I'll try to check it and make patch for it if needed but that might take weeks or month (not high on my priority list).
Better AI is included but its version is the one that was included in RevolutionDCM v0.94 and not the latest. At the time of merging RevDCM to RoM v2.3 it was the latest version available but seems there's now newer version of RevDCM which will be merged to RoM 2.4 (or what RevDCM version I can get my hands on during the patch making). It's quite common that merged mods are few versions older than the current one.
Thanks for the reply
I Just started playing, i notice Masonry Icon uses the Cross Icon?(Amun-ra) or something instead of the old intended icon =o & some other technologies as well use seemingly weird icons o.o