USF does a good job at dislodging garrisons. They can research grenades which double as smoke, the pack howie is good and can lay down white phosphorus incendiary rounds, the AA ht is almost as good as the OKW counterpart. Meanwhile, OKW has this expensive, fragile 4 man sturmpio squad that can essentially cripple their manpower economy if caught in a bad spot or forced to fight garrisons.
ISG?
AA HT?
Volk nades?
All of what you mentioned for USF have a cheaper, earlier counterpart for OKW already.
If you believe USF options to be good ones, I see absolutely no point in you complaining for OKW then as they got all the weapons needed as well, except much earlier, meaning they'll counter garrisons much faster then USF.
You have solved your own problem and closed yourself the door to further arguing.