Compare to USF.
For tank rushing.
Okw has: Volk stg +flame +ATnade, Sturm shreck, ATgun, MG, Kubel, Supportgun (not count InfraredHT & FlakHT because fuel consume)
USF has: RM, Rear, Cap, ATgun, supportgun
There is no way USF can fight or even hold the ground without using Light. Okw can skip it.
I'm not too sure what you're on about. According to your post actually USF would be worse off if they'd build a LV due to the availability of AT options from OKW.
Also I am not sure why you argue that USF needs a LV because OKW can have more units after 40 FU. LV don't come out until the 100 FU mark, so you had to survive to that point anyway, even temporarily with lower unit variety. But at 100 FU USF already has their officer upgrade as well. On the other hand, if USF does not build a LV, there is no use for Schrecks or an ATG, which basically leaves the OKW advantage at potential StGs, Sturmpioneers that get significantly worse the more units are on the field and the Kübelwagen. I've also already shown that the total FU cost is not lower for OKW.
So the only point that I can make out from your post is that USF is somehow forced into weapon racks, which indeed makes things easier and might be needed if you don't get a LV. But that is another topic and at the moment USF is doing actually a little too well it seems