Hi Somua,
I have been play testing the McFarlaine HOTT Modern rules that also have a WW2 variant.
Here is the link to the WW2 rules.You need a set of HOTT to really follow them but the DBA stats are pretty much the same I think.
link
From what you said above I guess you know about them.
Anyway, my experience of using HOTT to do WW3 has been generally good, but it takes a mind-set shift to get your head around them.
In a nut shell you might have 12 stands, perhaps 3 tanks, 4 APCs (with 4 dismount infantry), 2 Artillery ,1 ATGM vehicle,1 Anti-aircraft and 1 aircraft.The infantry stands might be just infantry or support weapons perhaps.
This looks pretty small with 1 to 3 vehicles on each 60mm frontage stand, but together it gives a pleasing combined force.
But, when fighting using HOTT WW3 rules the force feels like it is a battalion or a regiment. By this I mean that ranges and movement are massively reduced and the stands act like, for want of a better phrase, counters in a hex-less boardgame. So you have units retreating, standing head to head or being eliminated rather than the more large scale 15mm or 28mm battles where every nuance of terrain and individual vehicles is evident.So I guess each stand represents a company or a troop or a battery.
I try to think of this like any DBA/HOTT player probably does: that the battle frontage I have on a 3ft by 3ft board is probably about a mile or two in HOTT/DBA scale. I hope this all makes sense.
The good thing about the battles that I have played so far is that neither the NATO or WARPAC forces are over-powered as each type of unit is generalised.
For WW2 I imagine it is the same.
Heavy tanks, medium tanks, light tanks. It's up to you where you fit them in.
T34/76 = Panther
JS2= King tiger perhaps
That is up to you.
So try the DBA/HOTT variants out. I'm still figuring it myself, but I only started this WW3 thing a shortish while ago.
Hope this helps.