Most of the OKW infantry are elite troops that will be costly. Literally the only cheapo squad we have seen is the volksgrens. I think the MG-34 HMG will probably be the only other cheap one. The puppchen will probably be bought as for the MG-34 HMG. The 75mm ID...I don't know.
So I'm thinking that what's going happen with squads is that people are going to use Volksgrens as the base and then they supplement with the elite troops of their choice: Sturmpioneer (short-mid range), Obersoldaten (mid-long range), Sturm officer squad (mid-long range), Panzerfusilier (extra long range), and FJs' (all ranges).
As well as the commanders. Ive checked, and the list for nondoctrinal tanks and infantry is the largest in OKW. There are more vehicles than any other faction, and you have a viable infantry squad for nearly every situation.
Also: Building Skipping with doctrines:
We have Battle Group Headquarters with 75mm ID, IR halftrack, Pz II Luchs, Panther
We have Heavy Panzer Headquarters with Obersoldaten, ST, KT.
One can skip Battle Group or Heavy Panzer with
Luftwaffe Ground Force, Special ops and Breakthrough Doctrine.
There's going to more, of course, but unlike the other factions I think in certain circumstances one only needs to build 1 building with OKW if doctrines are applied.