You must have lost because me and saurok svcked.
Given that on my own I can only just defeat a hard AI, I doubt it.
One diffrence between the Wehrmacht and the US is that the US tend to rely on their doctrines where as it doesn't matter quite as much with the Wehrmacht. They have a large amount of good units without the having to use doctrines (although they cost more). The vet is also really unbalanced in the Whermacts favour as it is a global upgrade.
Unfortunately the game isn't really geared up to defence. The idea is you should be constantly pushing the enemy. If I had one major bit of constructive criticism that spans across multiple games is that most people I have played with don't cap enough and if the enemy takes a point you don't recap it. This is mainly a problem on large maps, but in this recent game I think I capped more points than both of you put together. Sure you end up running around the map a bit but that is why the minimap is great (Number Pad 0 to open).
Also, exploit medic bunkers. If you want to play defensive with Wehr, put a MG42 in a medic bunker and give it a bit of support. In games with concentrated fighting they have earnt me at least 1000manpower in grens. The major downside is they make you play more defensively (or they do me at least)
After writing this slightly larger post, I would like to point out that I know slightly above nothing about this game.