I know some people who did an RP kinda like this, but using Steam. I thought how they did battles was pretty cool, because they used Napoleon: Total War as it was set in the period.
Most of the people doing it were pretty bad at Total War though. So they got their friends to play for them and act as generals. I think it'd be cool for an RP to do that, but everyone would have to get the game to be used. I guess some could be played by AI, but I dunno.
I don't want to join this. The thought of forum RPs intrigues me, but they always seem to fall short. I hope you do a good job though, Volk.