I think anyone whos spent a lenght of time in the military can tell you that the renown system is a pretty good simulation of how the military works, in and of itself.
Logistics are what they are, good or bad. Supplies will be limited. Who gets first dibbs on the supplies? Ive often heard the phrase, "It's not who you know, it's who you ....... <AHEM> .. anyway, thats the raw blunt picture.
Simple fact of the matter is, not everyone, had access to everything. I think it was probably just as true for the Germans in WW2, as it is for US serviceman in the modern age. Some units just had priority over the others, simple fact. A unit i was in once, was considered a priority unit. What the unit commander asked for, he got. Why? Mission presidence, and simply put, our unit was Renown for being hard chargers. We went it, kicked ass, got the job done, and everybody knew it. WIthout exaggeration, Town patrol on more then a couple occasions cut me some slack, simply because of what unit i was in. Again... RENOWN.
Then theres the ugly truth, of the "good ole boy system". If supplies are limited, the personal in charge of supplies, arent going to let loose the choice bits to just anybody. You may have to do them a favor or he may have to owe you a favor before they remember, "oh yeah, we got one of those". Again, renown (or "Brownie points" as it's sometimes called
) Or in the case of some units, if they have a reputation, what they ask for, they get. Even if they have to haul it in special delivery. If the unit didnt have the clout to pull those strings, they woudln't get the item in question. (somebody else would
)