Your aar makes me very sad. I will do what I can in my game to finish off my opponent, so my forces can move into your's to help
What I notice is that attacking can be very very painful. As well, when you attack you lose your entrenchment level...so if you fail an assualt, you have lowered morale, lowered rediness, and you're entrenchment level is low. Ripe for a counter attack. So I only attack in areas I wish to advance in, and I only do it if I use air/artillery on the hex I am attacking....sometimes I use cards, but not necessary.
Even if you win an assault, the enemy can counterattack your now exposed units and push them back, although that can open him up to the above lowered readiness etc.
On any given turn, I may only attack maybe a dozen hexes at most. Maybe more after a mud turn, when I know he is suffering from lower supply in hard to supply area's...or is spread out. I would rather outflank (and lose the prestige) for a place like Rostov if it is too hard to take frontally, then to lose an army assualting it.
As well, I try to never spread my panzer units out, but keep them bunched in a bridgehead. Making a breach and spreading out behind the russian lines is just asking to have units cut off as he could pop reinforcements on any undamaged, rail-supplied city.
Your losses are so very very high....and I think come from you burning yourself out on attacking...then losses from those burnt out units being taken out.
“My logisticians are a humorless lot … they know if my campaign fails, they are the first ones I will slay.” – Alexander the Great