Another problems are the using of mass villagers to garrison our citys a low cost! Maybe villagers should have a penalty in giving order to citys to force players using limitanei, or even better, maybe CA retire villagers for civilizated factions......

Another problem i verified is that in some sieges at stoned walled citys, doing sappers not was available (and i had infantry ;)). And i NEVER went attacked with sappers by AI, but i guess it was only my game experience, because some people already reported it.