hello,
i checked this and would like to mention some things.
you need to understand how the ai assigns leaders, especially if you use locked GARs. it will always prefer leaders with the LW trait for the Panama garrison, as an example (or the combination OG/LW). this means, since you use McArthur already in 1936 (he was in PHI at this time, like Wainwright), he will command such a locked GAR from the beginning of the game until the end and will never show up in the pacific area (since he has the LW trait) - or somewhere else.
another person i spotted was J.L. Collins, who has also good stats and will command this locked GAR until end of game.
commando trait (256, etc): AoD ai ignores those leaders completely, except for MTN, MAR, PAR divs. that means BRA (as an example), which has already leader shortages (at least in vanilla or when at war), but usually never builds those units will have plenty of divisions without GOCs, while still having leaders (with commando trait) in the pool. simple deltion of commando traits does the trick.
Smuts in SAF is affected as well.
i do not have any for historical leader for the Panama canal force, but i use Schley in my games
http://generals.dk/general/Schley/Julian_Larcombe/USA.html.
i already mentioned the SOVs in the polish leaders file some time ago
Rokossovsky, etc (i have not seen the events, but in general keep all polish leaders marked with (Com) or (U) - Ukrainian? - dormant)
the leader marked with (Com) are
soviets like Nikolai Abramov (or Abramow, if you like), CO polish navy post 1945, a soviet admiral
http://ru.wikipedia.org/wiki/Абрамов,_Николай_Осипович
or Konstantin Rokossovsii
http://generals.dk/general/Rokossovskii/Konstantin_Konstantinovich/Soviet_Union.html
Fiodor Polynin
http://generals.dk/general/Polynin/Fedor_Petrovich/Soviet_Union.html
or Stanislav Poplavskii
http://generals.dk/general/Poplavskii/Stanislav_Giliarovich/Soviet_Union.html
they can be transferred after the soviets conquered Poland, but they do not belog in a polish leader line up in 1936
EDIT: sorry if this sounds silly, i wouldnt post if i wouldnt assume interest
