I'm sorry, but something has gone terribly wrong with multiplayer.
From version 1.02 I wasn't able to play multiplayer. With 1.32 I wasn't able to play multiplayer because I didn't see me in a player slot when joining. Other players have been able to join my offered game btw. So support asked me to delete all custom factions. Just to remind, playing in localizated shape. After whiping all the more then 200 custom factions with a nearly cleaned out game I was able to join game and got a player slot. Anyhow I was kicked by hosts all time, I wasn't able to play...
So...I really can't see the promised multiplayer improvements, @Island Dog. Sorry to mention it to get fixed.
From my 'unpaid bug-tester' position, there are following things that need to get fixed:
- complete integration of localization with game engine
- password restricted multiplayer game setups (I guess I've seen something like that in opt-in version 1.4, but didn't find an option for host to actually set a pass. so it is more then reasonable you didn't integrate it with localizated files. I also wasn't able to choose from all factions, because the mouse support in your pulldown ended after 2 factions. so I am restricted to play humans or drengin.
)

- custom faction integration for multiplayer, where every player only (!) could choose from his very own factions. reason: some custom factions from workshop are broken and with offering choice out of all availible custom factions from random players you only spread the desease.
Hope my constructive points help to get toward a real improvement of multiplayer.