When I first looked at the map I was a bit overwhelmed and did not really know how to proceed. Later on it dawned on me that a lot of Stalingrad could be bypassed on the way to the victory hexes which would also mean I would not have to spread my units too thin. So no frontal attack, more hit, penetrate and explode..
Core troops
8 infantry
• 2 grenadiers
• 2 3 move pioneers
• 4 gebirgsjaegers
11 armour
• 1 p3n
• 1 kerscher ivg
• 2 KV1B
• 1 se pz3n
• 1 se pz3l
• 3 se pz4g
• 2 flamm (more of a infantry unit than tank tbh)
11 artillery
• 4 10,5
• 2 17
• 2 stug3b
• 2 3 range nebel42
• 1 SU122
2 recon
4 fighters
2 stuka 87D
1 BF110g
2 level HE177a & DO217E
No antitank units
No anti air units
The idea was this:

The partisans were taken care of by the Italians aided by the luftwaffe and 1 flamm panzer.
The approach to Stalingrad was faitrly uneventful and progressed more or less according to plan.
Right before the fun begins:

After each conquest there were limited reprisals but not as overwhelming as I had expected. Maybe because of the concentration of force this scenario was relatively easy for me (on General level).
My starting prestige was 62867, but after repairs and a hefty overstrength bill it was down to 56700.
Prestige at the end was 58514.
Apart from the advantage of this strategy that unit damage was fairly limited the disadvantage was that prestige from secondary objectives was low because most of them were bypassed.
The end situation after a final massive push to the last victory hexes:
