Those overwhelmed armies with no resources somehow manage to field multiple armored OHQs, mechanized infantry OHQs, mech-reinforced infantry OHQs, and bomber wings/artillery regiments
I want to have this army! Here, let me provide you with some free intel.
I have zero (0, null, nada) armoured OHQs. The few independent detachments rolling about by and large remember the days of the Great Troglodyte Invasion and would not be sent to the front if I could help it.
On paper, I have two mechanized OHQs. One, until recently a corps - once my pride and joy, now half-bombed to kingdom come and downgraded - I've ever only managed to reinforce to maybe 1/3rd of the intended strength in non-infantry materiel. It never even had enough apcs in any battalion to not be treated as foot. The other was designated mechanized pretty much purely aspirationally, as I haven't had the resources to put almost anything in there. There's maybe 10 mechanized units to go around. Hell, it was even once a corps! Mechanized only in name.
Similarly, the two brigades with mechs have in one case 3-4 machines per battalion, in the other 1 per. They're just glorified apcs anyway.
My only bomber wing was destroyed by your airborne militia. If there's anything bombing you still, it's old, light, turboprop fighters with rockets and machineguns braving the sam-infested skies.
I have one artillery regiment. The rest is battalions. Each less effective than even the 1 Mt nukes.
My frontline infantry is still partially in outdated heavy armour. Not that the battledress is of much help when nukes start falling.
I'm rarely able to reinforce any of the understrength units at all, as - as was rightly observed - the one solution I've found is to drop as much ordnance I can on your lines (not that it's super effective or anything), which - together with replacing thousands of infantry losses and covering the deep rear against the threat of airborne attacks - drains the majority of my industrial capacity.
Of which I don't know how much do you think I have. You might be judging it from your perspective of having the government profile's 40% bonus.
Speaking of losses, with only a few cities to go around and no fist profile bonuses, my losses are dangerously close to causing widespread unrest. Yours - supposedly so high - not even close.
At the same time, new heavy thopters, new transport planes, new sams, new 50 Mt nukes, new quality tanks, micro-nuke rpgs, and now a nice full-strength mechanized corps reinforced with laser tanks and tracked quads keep popping up. (wait, is that a corps? Or did you just customize it like mad? It's hard to tell with your naming scheme)
As for the tasty snack of the major to my west - since they turned belligerent, they've camped some 150 thousand troops next to my border, and my six outdated brigades have to sit there in the hopes that they'll somehow hold the line in case my continued bribery efforts fail to placate them.
I have nothing to put on the border with my newly acquired blackmail-happy neighbour to the S-W. But at least there's nothing but barren mountains to lose there for a while, should/when they invade.