Yeah the campaign as baktria is very interesting indeed! I remember I had some luck and the Seleucids left me alone for some good time which I spent eating their eastern provinces and when I was rich enough I got tired of annoying Pahlava and Saka so I went on a hunt against the nomads> with my mines I raised a fullstack of baktrioi hippotoxotai, a pair of hellenikoi kataphractoi and a few prodromoi and levy skirmishers for garrison. I gained nothing valuable from this campaign, except for a secure flank. Then I captured India, and turned west into the AS. Then my PC died and I lost my campaign :(