I worked out a pretty alright strat/build for ostheer(I play them most). for me right now the sniper is a great pick against both factions usa sovs, then 1-2 mgs to controle the masses and the sniper to pick of pinned surpressed squads, then u can start building grens for map controle. if u have the resources tech up and either skip tier 2 to get p4 or ostwind(always a great unit against usa sovs), or if he gets tanks out early, build pak or pzg. try to concentrate ur units to 1 side in early game and then as u get more grens u can expand. and also cap with pio and maybe build a second pio at the start.
rough buildorder:
sniper--mg--mg--gren-gren-...-tech--(pzg/pak)--tech--ostwind/p4
hope that helps u!
