Another question for me is: what is the incentive for promoting generals? If I'm only getting 12% from a Field Marshall and 25% from an Army Group commander why would I take my higher skilled leaders and promote them? They can't go back down to a lower level if I need their skill and at the higher levels I'm getting almost nothing out of their high skill (a skill 4 Field Marshall isn't really that much worse than a Skill 5 or 6 Field Marshall.)
I am wondering the same thing... right now it appears the best place for highly skilled commanders is only 1 level up from bottom so 50% of skill still applies to more than one division. Above that its diminishing returns as highly skilled gets diluted by command distance penalties.
Would I rather have a 2 skill division MG that adds maybe 1 trait and +10 combat with 5 skill LG that has 3 traits and can pass on 50% of those traits bonus + the skill bonus of traits, assuming 1 skill adds 5% so the corps under the LG actually get 75% of his trait plus reserves are very likely to enter combat. Seems the best leader to command breakthrus.
I'd guess high skilled leaders with few or a single trait which you keep consistent are the best to make into FMs as the traits spread out so much are not that useful unless stacked.
Though if you add every part of the command structure together... I am not sure if the final effect of threater traits is 12.5% or 6.25%... but in sum you get 100% trait +50% trait +25% trait + 12.5% + 6.25% of theater commander if all units in range and radio effects 0. So if every leader from Theater down has offensive trait then you could get division at bottom bonus of 10+5+2.5+1.25+.625=19.375 offense bonus.
Seems pretty cool and alot of choices to make however it works out. Seems pretty powerful too as Russians for instance if you make defense priority you could get nearly +20 trait defense + dugin of +20 not considering terrain or radio, minster, and doctrine effects. Though of course that is assuming same #s from HoI2 carry over.