I have not tried this 1v1 but you can try it as a change of pace
I make no claims as to how effective it is, but it is fun
Panzers? Panzers! The Fatherland does not need no stinking Panzers!
This is the Ostheer equivalent to:
http://www.coh2.org/topic/5365/strat-the-motherland-needs-no-strat.-just-go-and-fight
Take Close Air Support:
Only build Grens, PGrens and Halftrack (Scout Car if you have to)
Only tech to BP2 (for the FHT if you get hit by massed infantry) but don't bother building any tanks
Convert all other fuel to munitions
Build only fuel caches
I usally build 4 gren squads then switch to PGrens.
Gren
Gren
Gren
Gren
BP1
PG
PG
PG
PG
You will easily have enough munitions to shrek up all your PGs, hold them back to counter armour
Your grens are your mobile units you use offensively, I generally don't worry about LMGs because I have to keep them moving and just rifle grenade everything in sight.
If you really want support weapons steal his
FHT later becomes handy to reinforce and counter infantry counter attacks
If Grens die off replace them with PGs but don't shrek them up
As the mid to late game arrives you will have converted enough fuel to munitions that you can recon, strafe and bomb pretty much at will.