I use Google maps. The impression I got of the East Germans is slightly better in comparison to the Vichy French during WWII. You have some units that hard core and super motivated by the Soviet friendship and others that just might throw down their pieces and give up. As far as joining their West German brothers? Probably not going to happen.

"I have some Eastern Germans rifles for sale. Never been fired and only dropped once."

The Poles on the other hand are a different breed. They don't like the Russians either, but they have just as much hatred for the Germans. They won't defect.