I remember once encircling the Red Army from Leningrad to Rostov using amphibious landings. The whole front became a pocket. Beautiful.You might be the only player who hasn't encircled half of the Red Army in 2-3 giant pockets during the opening months of Barbarossa. This is honestly the first time I've read such statement.
I think that is the achievement I am most proud of in my HoI2 history.
Edit: something like this -