The encirclements have been very badly done in this game and there is a lot of room for improvement.
I thought the advance north of the Pripyat was well conducted on turn 1 save the smallest of gaps I exploited on the edge of the swamps. If he had not struggled to dislodge one last unit, but had contented himself with the pocket it would have held and on turn 2 he could have liquidated much of it.
I'll have to look back at the south again, as that was leaky.
In my own overview of Teun's play I'd say the biggest 'mistake' from my perspective was the commitment of mech in spots and terrain that benefited the defender. Too much blasting with the cannon and not enough trying to find a weakness, create a gap, and run through it.
I'm a noob with the Germans in this campaign, especially the current supply rules. He'll have the same blizzard and +1 rules, i just hope to keep my head out of the noose.
I have a broad theme for my German strategy, but the particular flow is going to largely depend on how he decides to fight it.
I'll see if I can practice what I preach on that side. I've German success in WitW, so I'm optimistic.
The part of the game I almost ignore is the air war. An elite player would eat my lunch because I don't understand what most of the settings truly affect. I did really get in the groove with the WitW air war model.