Sorry if this has been suggested before but I went back a few pages and didn't see a thread on it.
I think, especially for the 100 player maps, that doctrines should be user selectable. This would not make sense for historical games but it would be great for the overall competitive gameplay that the 100 player games turn into. I have read in other threads that the devs do pay attention to the win statistics and which doctrine they are, but currently that could also have geographical starting location influence and you may get a more accurate sample with users choosing which doctrines they feel are best for future balancing statistics.
I think, especially for the 100 player maps, that doctrines should be user selectable. This would not make sense for historical games but it would be great for the overall competitive gameplay that the 100 player games turn into. I have read in other threads that the devs do pay attention to the win statistics and which doctrine they are, but currently that could also have geographical starting location influence and you may get a more accurate sample with users choosing which doctrines they feel are best for future balancing statistics.