Question about 'card meta' from the German perspective in the grand campaign

[Genosse]

I would like the devs input on card meta, meaning the strategic cards, not officer cards. I am asking about the Wacht am Rhein grand campaign as the Germans.

Basically I wonder how often the limited cards you get at the beginning, replacements, airstrikes, request more fuel etc, would be replaced from the German perspective. I am wondering when to use them in my campaign. Should I space out the initial three replacements cards ('Replacements from Stadkyll Area' etc.) over the 16 day campaign, or will more show up later so I should use them more frequently? Ditto with the all important fuel cards.

In the air tab, will I get a second or third battalion of KG Von der Heydte for the airborne drop, or does it reduce the operation to just one card? How about Jabos, is this a one time thing?

Afaik this has not been asked in the forums so far. Thank You!

[Khanti]

Some cards are replaced every turn, yet with higher cost. 20% for unit replacements, 50% for fuel, supply, etc

[Stelteck]

you have a new "federath" unit each turn (And max 2 can be stocked), but if you use the KampfGrup or the Luftwaffe unit they are gone.