How about that ?
a)Propaganda doctrine to give activated abilities and new skills for units,like inspire,making them harder to kill if loose soldiers,becoming much dangerous when loose soldiers from squad,sprint,bonus in friendly territory...etc.(90% from total points).Also as i suggested,can build AA bunker,much powerful fixed guns,trenches, and recruiting katyusha.
b) Urban doctrine to give hide/ambush ability for few units and urban fighting equipment upgrade,like smoke,grenade(explosive/incendiary/AT),better weapons,helmets/vest,flamethrowers,increased bonus in cover,building sand bags,recruiting cheap light and fast moving/shooting mortars,better snipers..etc
Also this doctrine can allow two upgrades for grenade>offensive to be thrown much further and accurate,with low area explosion,and defensive/fragmetation grenade with shorter range and much more devastating.
c) Breakthrough to give just upgrades for tanks,new tank models and self propelled artillery.
No Russian unit to have abilities for units from the start like heroic charge,grenade,flamethrower,smoke...etc..they can come just from doctrine with command points in a clear direction.
Upgrades from building to unlock new units for production,give weapons for conscripts and very few for others,increase population cap,unlock armored car and tank factory...etc...
All doctrine can lower the cost for buildings/fortifications,infantry,tanks...depending by the doctrine.
