Hi, I haven't played this one, but it looks like a fun scene.
I looked at "inventory and replacements" and it looks to me like,
Germans need to punch through quick w/ the PzKpfw IIB shooter wagons (see below pic)
I had pretty good combat results w/ them on a test turn 1,
combine arms with those guys leading the charge to punch the lines open.
You can find all the German tank units easy by go to Order of Battle (press "O" key)
then click on "Icon Type" label to sort by type; scroll down the list to Tanks,
then you can click on the Unit label to go to each unit (press 5 on the keypad to center on unit after clicking the label for it)...
then I get that tank unit leading charge, surround / support the tanker w/ nearby / formation help,
it will punch through, and try to get as many rounds of combat, too ....
I got at least five rounds of combat in my test of turn 1 Germans,
I could have gotten more but I just did a "quick dirty" test run.
Looks like a good scene, but also very intense / many units / seems difficult!
I hope this helps, Good Luck!!