A few reinforcements for my Soviet forces. 4x ISU 122s and 3x M16 AA half tracks.
I'm happy with the core:
1x 2 platoon company
1x 1 platoon company
4x Zis 2 AT guns
6x Heavy mortars
Its the heavy AT option I am not sure on:
a) 4x SU 100, 3x AA trucks + limited air support
b) 4x ISU 122s, 3x M16 AA half tracks
I prefer the ISU 122 model (its big squat and ugly) over the SU 100 but the SU 100 version has a bit more flexibility with the air support to worry about too.
I've been playing a few solo games to test out ideas, using my Hungarians as opposition, they have been quite enjoyable but its not quite the same as vs a real opponent.