I think Schindler actually passed the 1000, roughly 1200 if I recall right.
The Warshaw uprising was twice, ending in a complete rubble, -it was the worst beaten city of WW2.
Getting back to the Russians Partisans, one thing is interesting. There were lots of soldiers among them.
The Germans worked on a plan called "Kesselshlacht" or "Cauldron Battle". That meant encirclin (passing) big pockets of enemy forces very fast, cutting their supplies and communications and then anihilating them. This worked well in Poland, they were softer in W-Europe, and completely brutal in the USSR. But Russia was too big for that to succeed, and big areas could not be covered with panzered-up forces. They couldn't even hold all their captives (which counted millions) so there was a lot of escapees about.
One big area they could not master with their mechanized force were the Priphet marshes (SP?) where the lack of roads and rails made warfare a nightmare for the Wehrmacht.
It was their undoing.
My guess at Russian partisans under arms is by some millions...perhaps. And they were a constant menace to the Germans.
I am not sure how the Red army tackled with them or co-operated, - they tended to be very brutal on those who "had surrendered" or been caught.
Always good to look at a half-forgotten story though. After all, WW2 was a very expensive tragety, and we should use that "investment" to learn enough to avoid repetition.