Trying to merge 50 seperate factions into one techtree is gonna take ALOT of work Any factions which rely on a changed resource set (other than gold/stone/wood) will need to be modified.
Yeah, but it's worth the extra effort. And I added the gradually over several months. For most factions, you just need to check the mod's tech tree for any extra attack and armor types, and add them.
Also, there's resource's too, and sometimes the resources are modified in different techtrees.
For those, I just converted them back into gold, wood, and stone.
I've got lots of experience with stuff like that.