Wording for the setup of this scenario is a little confusing - this was already discussed in CHMB.
As per scenario card (mine is v1.2):
* Russians set up second on/east of hexrow G in hexes numbered less or equal 5 (upper right rectangle area);
* Germans set up first in these 2 areas (combines to L shaped area around Russian setup):
a) on/west of hexrow E;
b) anywhere within the playing area in hexes numbered more or equal 7.
So Germans start occupying that big administrative building.
Thanks. By CHMB are ypu referring to the official forum hosted by CH? I have been trying to get on there. It takes my username and password, but keeps telling me that I don't have access to the forums!