I only played one campaign as the Russians and that was pretty boring. Boyars were OK if you like that sort of thing but it didn't really make up for having no other decent units. I had to resort to Halbs as my main inf and.....they......are......so.......slow......

I started in High, had a rush to get ready to deal with the horde, dealt with it, got bored and gave up. Never again.

I've never started the Byz in early but that must be pretty dull too because (I assume) it must be ridiculously easy.