Good AAr! In my royal laziness I play a Saka campaign on M/M: hard times but after 50 turns I hold six provinces, got the reforms and got out of debt. I'm weak but I have to seize Antiochea Margiane before cleaning the Parthian homelands.
I can just dream of a second army, but my familly is flourishing, my single stack has three familly members, one experienced saka nobles, four basic horse archers and four archers. Saka bodyguards are fantastic.
Bactria has gone! I expanded right out of the mountains, made Bactra my capital city and took Kophen in order to prevent any Seleucid expansion northeast. I keep three rebel settlements east for later. It's going to be a long time before I can field a third army strong enough to overwhelm those nasty rebel horse archers stacks.

Going straight to India or out to the steppe is a challenge, good luck to this who will dare daring!