Raketenwerfer is so cheap, because Faust is locked behind tech. Change that and Püppchen can be changed/nerfed etc.
Beside, there is no need for lock Volk's faust behind tech. It has less range than Ostheer's version and every dive-in e.g. with early carrier is something shouldn't happen. Why not simply change Volks with Panzerfüsiliere? With some adjustements. -> 1st Panzerfüseliers are worse in close-combat than Volks, so Sturmgrens role get more clear. 2nd AT-rifle-nade is worse than Faust (DPS) so alliies early verhicles get higher chance to flee than versus Ostheer. 3rd. with UHU-change search-rife-nade would fill the role of old UHU.
For me it looks like better desighned line-up.
I'm not sure - imo the oppressive level of OKW infantry advantage early game should be balanced by their lack of early game AT. I'd make racketenwerfer 320 just to make sure OKW can't keep buing so many infantry units early game. Lookin at current puppchen stats that seems more than fair.
I'd never use ostheer as an example here as overall army strenth of ostheer vs OKW is extremely different. Ostheer is simply so much less effective that their faust seems to be a really necessay stopgap AT measure early game (they build a structure to get grens in the first place and they need to tech and build another structure to get the pak)