My suggestion for one ofteh three Ostheer doctrine would be a "foreign army support doctrine".
The Germans had several allies that particupated in much of the Eastern conflict, like Romania, and to a lesser extent Italy and Hungary(Bulgaria is too trivial to mention and Finland needs a mod of its own lol)
These countries and their expeditionary forces became more like sidekicks than allies, being put under the command of German Army Group Commanders, so why not represent them?
First I propose this doctrine to have rapid advancing, meaning abilities will only need 1-2 CPs to acquire, but these abilities are not like King Tiger call-ins so their advantage is in taht theya re fast. Split them up into 2 columns, one for Italian/Hungarian Support, the other for Romanian.
Each columns has 4 abilities, the first for Italians/Hungarians is
the Italian Infantry support, 1 CP, Italian infantry squad can now be constructed for the Tier 1(basic building of the Ost Heer), 6 man squad, relatively weak, but very fast to produce, faster than the German counterpart, and somewhat less expensive, and include an option to upgrade them with Beretta Model 38s(cheaper than MP 40s). Overall you are getting a faster produced cheaper basic infantry.
Second Ability is Hungarian Infantry support, 1 CP, exactly like the Italian inf, except no smg upgrade, and they are 5 men, but they are a call-in, let's say half the MP of the regular German Infantry, and fast recharge time between uses.
The third is the call-in is the Italian ligh tank, the L6/40, again for 1 CP. Cheap to call-in, with a fast recharge, the L6 is meant to be a fast recon/recon killer.
Finally for the last ability, the Hungarian 43M Zrínyi mobile howitzer becomes available to build in the Tier 3 armour building, functions much like a StuH for those unfamiliar.
Notice the Italian and Hungarian Support is based on anti-infantry, for anti-tank, you turn to the Romanian support.
For 1 CP, you get the buildable Romanian AT Grenadiers, buildable in the same building as the Italian infantry, they are a 4 man squad, no upgrades but they have AT grenades, slow to throw but powerful against most armour.
Next is the 1 CP, Romanian Armoured Support. 1 call-in brings 2 Romaninan R2 LT-35 tank to the battle, no cost, but very long recharge. These tanks are like the Hotchkiss but slightly better vs vehicles, early game they can be very powerful.
Next 1 CP is the Call-in Romanian Bohler 47mm AT gun. Cheap, standard off-map, upgrade for a gun shield. Recharge Standard.
Finally, the final 2 CP, is a buildable TACAM R-2 tank destroyer, same building as the Zrinyi, a light/medium cheap tank destroyer.
Total 4-callins and 4 buildables, to make up for passive abilities and the like, these abilities are cheap in CP, meaning a strong early game and rapid advancing, also remember that this is liek any dotrine, a support. Your mainstay witll still be German but you will have the ability to surprise the Russian with quick support.
Added twist, the Hugarian and Romanians hated each other, the only reason they fought with Germany was because Hitler promised each of them part of the others land after the war. In the front, Italian units were put inbetween them so that they wouldn't fight each other, so if the player has Hungarian infantry and Romanian infantry in firing range to each other they will start shooting at each other. Balances it out so the Axis can't create a blob of cheap infantry and then a blob of AT grenadier and charge them all off, so it all balances out. What do you guys think? And it's just an idea i've hade for awhile, please don't cut my thoart over it lol.
