Managing the larger scenarios

[Desslok]

Hello.  Long time lurker, first post.  I am curious if anyone has tips on managing some of the larger scenarios for the various games.  Although I have Moscow, Stalingrad, Kursk, Smolensk and Minsk I have never managed to play any of the larger scenarios.  More than once I have started saying to myself, "I can do this".  I never manage to get through a single turn without stopping and thinking, "how is micromanaging hundreds of units per turn fun?"  The most I have been able to do is a few dozen turns on Kursk with the Southern only map.

Anyway, I am simply curious if anyone has actually completed some of the larger games which last into the 100s of turns and how you go about managing the huge number of units.